A murder investigation has been launched after a 24-year-old was stabbed to death at a Tube station.
The victim was injured during a fight between two groups of men at Elephant and Castle Underground station in south London just before 11.30pm on Sunday.
On Monday, British Transport Police said that the 24-year-old had died from his injuries in hospital.
It is the 92nd homicide in the capital so far in 2019 and the fourth fatal stabbing in the space of week.
A second man, aged 25, who was also hurt remains in hospital in a serious condition.
Keylin Tejeda, 32, from Elephant and Castle, said one of the victims was a regular customer at her pattie shop El Monte.
She said: “I was coming from a restaurant with my partner around 11 and when we were passing by we saw him lying down. I could see who he was, I saw him.
“The ambulance were operating on him on the floor.”
London Mayor Sadiq Khan called the death “a senseless loss of a young life” and urged witnesses to contact police or Crimestoppers.
Detective Chief Inspector Sam Blackburn said: “This was a shocking act of violence and we are working tirelessly to identify and trace those responsible.
“While the investigation is still at an early stage, at this time we believe there was an altercation between two groups of men inside the Underground station and it is here the victims sustained their injuries before making their way onto the street.
“We have a number of reassurance patrols in the area today so passengers can expect to see an increased police presence on their journey.
“I would urge anyone who hasn’t already spoken with police to get in touch with us as soon as possible by texting 61016 or calling 0800 40 50 40 quoting reference 597 of 01/09/19. Alternatively you can call Crimestoppers anonymously on 0800 555 111.”
Two men were arrested on suspicion of violent disorder over the fight.
This comes weeks after prime minister Boris Johnson pledged ÂŁ1 billion towards recruiting 20,000 extra police officers by 2022 in a bid to tackle violent crime.