Tributes have been paid to three British nationals who died when a Ukrainian plane crashed in Iran.
Mohammed Reza Kadkhoda Zadeh, who owned a dry cleaners, BP engineer Sam Zokaei and PhD student and engineer Saeed Tahmasebi were all on board the flight.
They were among the 176 people from seven countries who died in the crash.
Ukraine International Airlines flight PS752 crashed just after taking off from Imam Khomeini airport at 06:12 local time (02:42 GMT).
The airline said the plane underwent scheduled maintenance on Monday.
A Downing Street spokesman said the UK was “working closely with the Ukrainian authorities and the Iranian authorities” over the crash, and there was “no indication” the plane was brought down by a missile.
As well as the three Britons, the victims in the crash included 82 Iranians, 63 Canadians, 11 Ukrainians – including all of the crew, 10 Swedes, four Afghans and three Germans, Ukraine foreign affairs minister Vadym Prystaiko said.
Rescue teams have been sent to the crash site but the head of Iran’s Red Crescent told state media that it was “impossible” for anyone to have survived the crash.
Tributes were paid locally to Mr Kadkhoda Zadeh, 40, who ran a neighbourhood dry cleaners in Hassocks, West Sussex, and had a nine-year-old daughter.
Steve Edgington from the pet shop next door said he had known Mr Kadkhoda Zadeh for 14 years, and described him as a lovely, hardworking man who was good at his job and loved by staff.
Savvas Savvidis, 36, who rented a room in Mr Kadkhoda Zadeh’s home in Brighton, said he was a “super-nice person”.
“It’s so sad. Before he left we had a conversation, he told me that he spent all his life working, working really hard, and now finally he wants to start to enjoy life a bit more.”
Mr Savvidis described Mr Kadkhoda Zadeh as a humble man who loved his daughter very much.
The dry cleaners closed on Wednesday, with neighbouring businesses telling the BBC that staff were too upset to stay open.
Meanwhile, in a statement, BP said “with the deepest regret” that its employee Mr Zokaei, 42, from Twickenham, was among the passengers.
Mr Zokaei had been on holiday. He had worked for BP for 14 years and was based at the company’s site in Sunbury-on-Thames in Surrey.
“We are shocked and deeply saddened by this tragic loss of our friend and colleague and all of our thoughts are with his family and friends,” BP said.
A friend of Mr Zokaei, who did not wish to be named, told the BBC they were “still in shock”.
“He was a highly accomplished person. Very clever and very friendly. Always smiling and full of positive energy. He will be sorely missed.
“He was always trying new adventures. He cycled and toured Europe on bikes a few times. He also loved travelling to interesting far out places.”
Also killed was Mr Tahmasebi, 35, who worked as an engineer for Laing O’Rourke in Dartford.
Last year, Mr Tahmasebi married his Iranian partner, Niloufar Ebrahim, who was also listed as a passenger on the plane.
“Everyone here is shocked and saddened by this very tragic news,” said Laing O’Rourke.
“Saeed was a popular and well respected engineer and will be missed by many of his colleagues. Our thoughts are with his family and friends at this most difficult time and we will do all we can to support them through it.”
‘Humble and generous’
Mr Tahmasebi – whose full name was Saeed Tahmasebi Khademasadi – was also a part-time PhD student at Imperial College London’s Centre for Systems Engineering and Innovation.
A spokeswoman for the university said: “We are deeply saddened at this tragic news. Saeed Tahmasebi Khademasadi was a brilliant engineer with a bright future.
“His contributions to systems engineering earned respect from everyone who dealt with him and will benefit society for years to come.
“He was a warm, humble and generous colleague and close friend to many in our community. Our thoughts and sincere condolences are with Saeed’s family, friends and colleagues, as well as all those affected by this tragedy.”
At Prime Minister’s Questions earlier, Boris Johnson and Labour leader Jeremy Corbyn both said their thoughts were with the families of those killed.
A UK Foreign Office spokesman has said: “We are deeply saddened by the loss of life in the plane crash in Iran overnight.”
They said it was “urgently seeking confirmation” about how many British nationals were on board and would be supporting any families affected.
Melinda Simmons, British ambassador to Ukraine, said her thoughts are with those affected.
Ukraine’s state aviation service has forbidden its national airlines from using Iranian airspace from Thursday, with the restrictions in place until an investigation into the cause of the crash has concluded.
Ukraine’s embassy in Tehran and Iranian state television both initially said technical issues caused the crash.
But the embassy later removed this statement and said any comment regarding the cause of the accident prior to a commission’s inquiry was not official.
Ukraine said its entire civilian aviation fleet would be checked for airworthiness and criminal proceedings would be opened into the disaster.
The country’s president warned against “speculation or unchecked theories regarding the catastrophe” until official reports were ready.
Ukrainian International Airlines said the flight disappeared from radar just a “few minutes” after take-off.
The Ukrainian national carrier said according to preliminary data there were 167 passengers and nine crew members on board but its staff were “clarifying the exact number”.
“The airline expresses its deepest condolences to the families of the victims of the air crash and will do everything possible to support the relatives of the victims,” a statement said.
The airline, which is investigating the crash, said the aircraft – a Boeing 737-800 – was built in 2016 and had its last scheduled maintenance on Monday.
There was no sign of any problems with the plane before take-off and the airline’s president said it had an “excellent, reliable crew”.
A statement from Boeing said its “heartfelt thoughts” were with all those affected following the “tragic event”.
There are several thousand Boeing 737-800s in operation around the world which have completed tens of millions of flights. They have been involved in 10 incidents, including this crash, where at least one passenger was killed, aviation safety analyst Todd Curtis told the BBC.
This is the first time a Ukraine International Airlines plane has been involved in a fatal crash.
A man was stabbed to death in a fight outside a block of east London flats in a “particularly vicious attack”.
The 19-year-old was found by police responding to reports of a disturbance outside Owen Waters House, in Fullwell Avenue, Ilford, on Tuesday night.
The victim died at the scene and his next of kin have been informed.
No arrests have been made but the Met said “the possibility that the murder is gang-related is a very strong line of inquiry”.
Police are establishing if the stabbing is linked to a fire at some nearby garages where a car was found burnt out.
The Met said fire crews had been called to the blaze at about 22:20 GMT while traces of blood had also been found around the vehicle.
Det Ch Insp Chris Soole described the killing as a “particularly vicious attack” and appealed for witnesses.
A Section 60 Order – giving police stop-and-search powers – was put in place for the whole of the Redbridge borough until 06:30.
There have been five murder investigations in the borough in 2019 – three of which have been as a result of fatal stabbings.
Homicides in London since 2008
Annual homicides in the Met Police area
So far this year, almost 130 murder investigations have been launched in the capital.
Three investigations have been carried out by British Transport Police and 124 have been investigated by the Met.
At the scene – Greg McKenzie, BBC London
A forensic tent is outside the tower block marking the spot where the teenager died.
Residents have been telling me about rising tensions in the last few weeks. The block – just off a main road in Ilford – is known as a meeting point for drug dealers and people said the issue is “rampant”.
They have also described a lot of “youth disturbance and violence” in the area and expressed their fear, anger and shock.
Officers have been coming in and out of the flats and they are trying to work out whether a burnt-out car is linked to the fatal stabbing.
A teenage boy has been stabbed to death in east London.
Police officers were called to Byford Close in Stratford at 18:45 BST on Tuesday following a report of a fight, the Met Police said.
No arrests have been made but the death is being treated as murder. It is the 93rd homicide in the capital this year.
A section 60 order, which allows police to stop and search people, has been put in place for the whole of Newham borough until 12:30.
A 16-year-old boy has been stabbed to death in north-west London.
Police officers and the London Ambulance Service were called to Munster Square in Camden at about 23:10 BST on Monday.
Scotland Yard said the victim was pronounced dead at the scene and no arrests have been made.
A murder investigation has been launched and a crime scene remains in place. The Met has urged witnesses to come forward.
A large police cordon stretching across a number of roads was in place on Tuesday morning.
The firearms officer who shot dead the ringleader of the 2017 London Bridge attack thought he would be killed when he challenged him, a jury has heard.
The officer told the Old Bailey inquest into the deaths of the attackers that he feared Khuram Butt would “stab me, kill me and get hold of my weapons”.
Butt and two other men had just driven at pedestrians on the bridge and attacked people with knives in Borough Market – killing eight and injuring 48.
All three were shot dead by police.
The inquest is expected to go on for three weeks and, under law, must be heard by a jury.
In just 10 minutes, Khuram Butt, 27, Rachid Redouane, 30, and Youssef Zaghba, 22, ploughed down pedestrians on the bridge and brought chaos to Borough Market, carrying knives and wearing fake suicide belts.
Addressing the court anonymously, the officer identified only as BX46 said that as he arrived at the scene in an armed response vehicle at the end of a 12-hour shift, he was armed with a Glock 17 pistol, a Taser and a G36 Carbine rifle.
He said he “feared the worst” when the call came in, and that as he approached with his window down, he could hear people saying “they’re stabbing people”.
He said he then saw an Asian man in a blue Arsenal top holding a large knife in a threatening manner.
Although he couldn’t recall the exact words he used, he said he believed he would have shouted: “Armed police, stand still, drop the knife”.
He said the attacker did not obey the command, so he moved back to create some space between them. But the attacker – later identified as Khuram Butt – came towards him, raising his knife.
“I believe his intention was to use the knife and stab me, kill me and get hold of my weapons. The knife was in a raised position, which gave me great concern,” he said.
The officer said he then noticed Butt was wearing what looked like an improvised explosive device.
“They looked like vertical tubes, grey, around his chest. He was one to two metres away, a threat to me. Detonation would be fatal,” he told the court.
The officer said he was not aiming for a particular part of the body when he pulled the trigger. He fired a number of shots and stopped when the attacker fell to the ground.
The court also heard from a second officer, identified as BX44, who told jurors that the incident at London Bridge was his first firearms incident.
He said he had been tasked with handing out weapons from the Armed Response Vehicle, but that as he got out of the car, he saw three Asian men coming towards the group, carrying knives.
He said he fired first at Butt because he thought he was about to kill BX46.
“The red dot [from the gun’s sights] was on him but there was very little reaction and I was surprised he was still coming.”
He said he continued to track him with his weapon, but he had to break away because he feared another of the attackers, Rachid Redouane, was about to kill another colleague, codenamed BX45.
“The red dot was on him. I fired shots and there was no immediate reaction. I carried on firing until I had to deal with the third threat of Youssef Zaghba.
“I was backing away trying to create a reactionary gap when I fired and fell backwards, and as I fell backwards I fired, and from the floor I fired through my legs up to his chest.
“I thought he was about to kill me.”
Afterwards, he kicked Zaghba’s hand away from his chest, because he assumed he was about to detonate what he thought was an explosive belt, before moving on to support BX46, he said.
BX44 said he thought Butt was dead, but minutes after the first burst of gunfire he saw his chest rise and fall.
“I did not see his hands but his arms started to move down slowly towards the suicide vest,” he said. “I thought he was going to detonate. I fired shots. They were aimed shots.”
BX44, who fired 17 shots, went on to help search for a fourth possible attacker and carried a woman who was having a seizure to safety.
He said he found three people in a cupboard during a search of the Black and Blue restaurant nearby.
The inquest continues.
A heavily pregnant woman who was stabbed to death has been named as Kelly Mary Fauvrelle.
Two men have been arrested on suspicion of murdering the 26-year-old, who was pronounced dead at a house in Croydon, south London, early on Saturday.
Her baby was delivered at the scene by paramedics and is in hospital in a critical condition.
Police said a 29-year-old was in custody and a 37-year-old had been released under investigation.
Both men were arrested on Saturday. Scotland Yard said it was keeping an “open mind as to motive”.
Det Ch Insp Mick Norman described it as “a horrific incident” and said the force’s “sympathies go out to [the woman’s] devastated family”.
“At the forefront of our inquiries is understanding what exactly has led to these tragic circumstances, and we are doing everything we can to establish the facts.”
Medics fought to save the mother, who is believed to have been about eight months pregnant, after being called at about 03:30 BST.
An air ambulance, two ambulance crews and two response cars were sent to the scene by London Ambulance Service.
A cordon is in place around the whole of Raymead Avenue, Thornton Heath, where the attack happened.
Chandra Mutucumarana, who has lived in the street since 1976, said he was “utterly shocked” and neighbours were “upset for her but hopeful for the child”.
One neighbour paid tribute to the victim, describing her as a “nice girl”, while another said she believed three women lived at the house, along with a small dog.
One resident, who lives two doors down, said she heard the animal barking when she got up at about 03.30 for prayers and added she was “shocked and surprised” to hear about the attack.
Forensics teams remain at the house, where officers could be seen swabbing an alleyway running alongside the property, while police officers are on guard at the front.
A post-mortem examination is due to be held.
On Twitter, London mayor Sadiq Khan said: “Violence against women is endemic in society and devastating murders in the home, like this one, show the scale of the problem we face.
“My prayers are with this innocent child, and with the mother it has so tragically lost.”
A man who was stabbed to death inside a west London shop as he tried to hide following a fight has been named by police.
Yusuf Mohamed died at the scene after he was attacked in Uxbridge Road, Shepherd’s Bush, on Wednesday night.
Witnesses said the 18-year-old went into the store “for cover” but was followed and stabbed.
No arrests have been made but police said they were looking “two males, possibly in their teens”.
The pair were seen on CCTV running away from the area in the direction of Wormholt Park.
A post-mortem examination found Mr Mohamed, who was from the Hammersmith area, died from a stab wound.
Passers-by have been laying flowers outside the shop in tribute to the 18-year-old.