Detectives have released images of two men and a woman they want to speak to after a teenage asylum seeker was attacked at a bus stop in Croydon, south-east London.

Scotland Yard appeals for public’s help to trace three more young suspects

A group of up to 20 people watched as a gang punched and kicked a teenager in a “savage attack” at a bus stop in south-east London, it has been claimed.

Neighbours say they saw a large number of people looking on as a Kurdish Iranian teenager was so badly beaten he was left with a fractured skull and a blood clot on the brain.

Eight people, including a woman and a 17-year-old girl, have been arrested on suspicion of attempted murder and violent disorder after the boy suffered a fractured skull and a blood clot on the brain.

The boy attacked  screamed ‘help, help, help’ as he was thrown to the floor and blows rained down on him.

The attackers swore and hurled abuse at the Kurdish Iranian teenager during the ‘horrendous and frenzied’ assault, which stopped only when they heard police sirens.

The unconscious victim was left sprawled ‘flat out’ in the suburban street fighting for his life.

The attack has drawn widespread condemnation, with Tory minister Gavin Barwell describing the attackers as “scum”.

Mr Barwell, Croydon Central’s MP, said: “It’s an appalling crime and I hope the people responsible are caught quickly and receive the full force of British justice.”

London mayor Sadiq Khan also condemned the attack, saying hate crime “has no place in London, Britain or anywhere else”, while the Refugee Council said it was “disgusted” by the assault.