A man stabbed to death at a London Underground station was a football fan on his way to a match, the BBC has been told.
The Arsenal supporter was killed in an “unprovoked attack” on the platform at Hillingdon station on Tuesday.
He had been on his way to the Emirates Stadium to see the Gunners face Nottingham Forest in the third round of the Carabao Cup, a source said.
It is the third murder investigation on the Tube network this year.
No arrests have been made over the attack, which Det Supt Gary Richardson described as “a shocking act of violence”.
He said the British Transport Police (BTP) investigation was in its “early stages”.
“We believe a group of young men were involved in an altercation on the platform before one of the men received a fatal stab wound,” he said.
Police were called to the station in west London shortly before 16:00 BST and the victim was pronounced dead at the scene.
Danielle Foster, who was driving past Hillingdon station at the time of the stabbing, said upon “hearing so many sirens, I knew something terrible had happened”.
“Lots of people were being turned away from the station as it had been closed,” she said, adding: “Then the police helicopter began circling the scene.”
Hillingdon station was closed by Transport for London (TfL) while police searched the area.
The station has since reopened.
So far in 2019 more than 110 murder investigations have been launched across London by the Metropolitan Police and BTP.
A man was stabbed to death in a south-west London street by the person he had been walking with, police have said.
Tesfa Campbell, 40, was found by police responding to reports of a fight on Latchmere Road in Battersea on Wednesday. He died in hospital.
Det Ch Insp Simon Harding, from The Met, said it is believed Mr Campbell was walking on Burns Road with another man who stabbed him and fled on foot.
No arrests have been made in connection with his death.
Police found Mr Campbell injured at about 14:45 BST and have appealed for witnesses who were in the area at the time, “particularly” around the nearby Latchmere Leisure Centre.
Det Ch Insp Harding said: “This stabbing happened in broad daylight and we believe there are people out there who can help us establish the facts of the incident.”
A post-mortem examination of Mr Campbell, who was from Croydon, will happen in due course.
A young woman was killed in the London Bridge attack after she ran to the aid of another victim, telling her friends, “I’m a nurse, I have to go and help”, an inquest has heard.
Kirsty Boden, 28, was stabbed in the head as she knelt over restaurant waiter Alexandre Pigeard as he lay dying, the Old Bailey heard.
Footage of her being set upon was shown at the inquest into the deaths of those killed in the London Bridge attack.
Eight people died on 3 June 2017.
Australian Ms Boden, dubbed the “angel of London Bridge”, had been out for a meal with two friends when she heard the three attackers’ van crash into the railings above and debris falling onto the outside tables.
Gareth Patterson QC, the lawyer for her family, said Ms Boden got up within seconds of the crash.
The off-duty nurse, who worked at Guy’s Hospital, was thinking of others rather than her own safety, he said.
A statement from Ms Boden’s friend, Melanie Schroeder – one of the friends she was dining with – was read out to the jury on Friday.
Ms Schroeder, who had previously asked Ms Boden to be her bridesmaid at her wedding, said: “Kirsty jumped up and said, ‘I’m a nurse. I have to go and help. I need to see if they need help’.
“Kirsty headed off and I thought nothing of it,” she said.
Ms Schroeder said she then remembered hearing screaming and thinking people should calm down because it was “just a crash”.
The friends fled the restaurant with the other diners, and when they returned Ms Schroeder said she saw Ms Boden’s body on the ground, which she recognised “because of her bright pink cardigan”.
Ms Boden, who had suffered stab wounds, was alive but unable to speak, Ms Schroeder said.
Ms Schroeder and a GP tried to revive her friend, while Ms Mooney attempted to find emergency medical help, but Ms Boden died at their side.
Courtroom in awe at selflessness
BBC reporter Hanna Yusuf, at the inquest
Dreams, hopes and friendships were terminated on the night Australian nurse Kirsty Boden lost her life.
The courtroom watched in awe as footage of a selfless Ms Boden getting up from her dinner with friends – to help victims after hearing a crash – was played.
The clips illustrated a night that violently broke up the friendship trio of Ms Boden, Melanie Schroeder and Harriet Mooney.
In statements read aloud, Ms Schroeder and Ms Mooney emotively described the night during which they saw their friend die.
The desperation in their attempts to save the life of their friend, who was supposed to be Ms Schroeder’s bridesmaid, was palpable.
There was a collective shudder as the court watched the moment Khuram Butt made a stabbing motion at a faint figure identified as Ms Boden.
The court was reminded that the breakdown of moments that seemed lifelong, and were life-changing, happened over a matter of seconds in real time.
The inquest heard how Ms Boden was set upon by all three attackers – Khuram Butt, Rachid Redouane and Youssef Zaghba.
The three had crashed their car on London Bridge before running through Borough Market.
They were shot dead near the market around 10 minutes after their attack began.
Lawyer Mr Patterson said the tip of a knife carried by attacker Butt, 27, was later found embedded in Ms Boden’s head.
The jury heard an account from witness Alexandre Colou, who said he saw the moment Ms Boden fell as crowds of people fled the attackers.
“Her eyes were moving wildly,” he said. “She had difficulties breathing. I was talking to her and then her eyes stopped moving.
“I said ‘stay awake, stay awake, stay with me’.”
The stories emerging from the inquest
- Australian au pair Sara Zelenak was being helped up by a passer-by after slipping over in her high heels when they were both fatally stabbed.
- The first person stabbed in the attack, Richard Livett, described coming “nose to nose” with attacker Khuram Butt, who shouted “Allahu Akbar” in his face before stabbing him in the back.
- PC Mia Kerr recalled how she discovered victim Sebastien Belanger lying in the street and used her baton to protect other members of the public from the attackers.
- Off-duty nurse Helen Kennett told how she asked one of the London Bridge attackers what was wrong with him before he stabbed her in the neck. She survived the attack.
The inquest also heard from British Transport Police constable, Wayne Marques, who previously spoke to the BBC about being the first officer to confront all three of the attackers.
At the inquest, PC Marques told of how he had been on patrol, armed with only a baton, when he ran to the aid of Marie Bondeville, her boyfriend Oliver Dowling, and Richard Livett.
He said he was initially alerted by a woman’s scream and people running up and down Borough High Street.
As he went to investigate, he told the court he was approached by a man running, before finding Richard Livet lying in a pool of blood.
He then noticed a man grabbing Ms Bondeville and told the court how the attacker appeared to punch her three or four times, before she fell to the floor, face down.
PC Marques then described the moment he saw Mr Dowling being stabbed in the neck.
He said: “I got my baton out and charged the first attacker… my intention was to hit him as hard as I could with all my weight behind me with everything I had. I knew he was trying to kill the man on the floor.”
PC Marques said as the first attacker began to “crumble” the officer felt an “almighty blow” to his head – which impaired his vision.
He said: “At this point I saw a knife coming towards me. Through instinctive reaction I defended myself.”
The officer said “a messy fight” ensued with the second attacker, before the third ran over.
Although PC Marques was stabbed multiple times, he said: “My job at that stage was to hold on and keep them fighting until the cavalry arrived.”