Police have issued an appeal after a woman was raped in Swiss Cottage in the early hours of Saturday morning.

A witness appeal has been issued to trace a man who helped the woman following the attack in Eton Avenue at about 4.30am.

The passerby found a distressed woman in her 20s, who detectives believe was raped in a vehicle in Eton Avenue or surrounding streets.

Police were called to the scene and an investigation has been opened led by detectives from the Metropolitan Police’s Sexual Offences, Exploitation and Child Abuse (SOECA) command.

Officers have appealed for anyone with any information or any witnesses to come forward, especially the man who provided assistance to the victim.

She is receiving specialist care at a Havens centre.

The suspect is described as a white man with slightly tanned skin, aged in his mid 20s to 30s, with dark hair and stubble on his chin.

Detective Constable Jenny Thrower, of SOECA, said: “It is of paramount importance that anyone with any information regarding this incident comes forward and helps us with our inquiries.

“I am also directly appealing to the man who assisted this young woman following the attack to come forward as he maybe able provide us with vital information.”

Anyone with any information is asked to call the incident room on 0208 733 5999 or Crimestoppers anonymously on 0800 555 111.