A Harlow man has been arrested by police investigating the fatal stabbing of a 20-year-old in Brixton.

The Metropolitan Police have arrested an 18-year-old from Harlow on suspicion of murder.

The victim has been named as Salem Koudou, 20, from Lambeth.

Police were called shortly before 6pm on Thursday, August 20 to reports of a fight in the vicinity of Overton Road, Brixton.

Officers, the London Ambulance Service (LAS) and London’s Air Ambulance all attended the scene.

Salem was found suffering stab injuries on Wynne Road. He was taken to hospital for treatment but died just hours later.

His family have been informed.

A post-mortem examination has given the cause of death as multiple stab-wounds.

One man – aged 26 – was found suffering stab injuries on Overton Road. He was taken to hospital where he remains; his condition is not life-threatening. He was arrested on suspicion of conspiracy to murder, but has since been released.

An overturned car was found in nearby Marcella Road and is being linked to this incident.

Detectives believe it may have collided with another car before overturning; there were no reports of any injuries directly as a result of this collision.

A 19-year-old man was subsequently arrested on suspicion of murder and grievous bodily harm (GBH). He has been released on bail to return to a south London police station on a date in September.

The investigation by homicide detectives from the Met’s Specialist Crime Command is being led by Detective Chief Inspector Richard Vandenbergh.

He said: "August 24 should have been Salem’s birthday, but instead of celebrating, his family are suffering the pain and anguish of his loss. We need to understand the chain of events that led to this young man’s death, and for that we need the public’s help.

“The incident took place in the early evening on a busy street. Many people have already spoken to my officers, but I know there are more who have yet to speak to police; we particularly want to hear from anyone who has video or dash cam footage. If you can help then please come forward, you will be fully supported.”

Anyone with information that could assist police is asked to call 101 or tweet @MetCC and quote CAD 5998/20Aug.

Alternatively, contact the independent charity Crimestoppers anonymously on 0800 555 111.