Four men arrested on suspicion of murder after 16-year-old stabbed to death in south London

Witness describes mother's screams as her son died

John Ogunjobi died after being stabbed in Tulse Hill, south London (PA)

Four men have been arrested on suspicion of murder following the fatal stabbing of teenager John Ogunjobi, police have said.

The 16-year-old, from Tulse Hill, south London, died from his injuries after being attacked on 5 November.

Detectives said on Monday they had arrested four men, aged 20, 21, 22 and 23, who have been taken into custody at south London police stations for questioning.

Officers were initially called to Greenleaf Close, Tulse Hill, shortly before 11pm on the day of the attack, finding the teenager collapsed in the street with stab injuries.

Despite the efforts of paramedics he was later pronounced dead at the scene.

The teenager died in front of his devastated parents, with one witness describing his mother’s screams.

Metropolitan Police officers returned to the scene a week on from the attack to appeal for any witnesses to come forward.

Officers also asked for anyone who may have captured footage or images of the incident on their mobile phone to get in contact.

Detective Chief Inspector Richard Vandenbergh said: “We believe the victim was attacked by a number of suspects and the altercation would have undoubtedly drawn the attention of those who were in the vicinity.

“Did you see or hear anything? If so, no matter how insignificant you think it may be, please call – your information could prove to be crucial.”

Police earlier confirmed that a post-mortem examination found the teenager’s cause of death to be a stab wound.

In the week from 31 October, John Ogunjobi was one of five people stabbed to death in London in separate killings.

So far in the capital this year there have been 119 violent deaths, including two cases that are being treated as self-defence.

Press Association