A 13-year-old girl was raped by a man she met in Kingston-upon-Thames near the river.

The atttack happened at 10.45pm on May 17 on a grass area near Barge Walk.

The girl had met the man in his late teens to early 20s the previous day in Camden and agreed to meet again.

The victim did not require hospital treatment but was taken to a Haven sexual assault referral centre after the attack was reported on May 19.

The suspect is described as an Asian man wearing blue jeans and a dark coloured leather jacket.

Detectives are keen to trace a young couple who the victim remembers passing on Barge Walk after the offence.

The couple were walking in the opposite direction, towards Hampton Court. The woman, who checked on the girl's welfare, is described as around 25 years old with fair skin, a blonde bob and wearing a denim jacket.

Det Con Pete Condron, of theMet Police's sexual offences command, said: "I would appeal to anyone who saw anything suspicious or has information to contact us immediately.

"In particular, I would appeal to the couple who approached the victim to call us. They may hold vital information about what happened."

Anyone with information is urged to call the police incident room on 020 8721 4251 or via 101. To remain anonymous call Crimestoppers on 0800 555 111.