Police have released CCTV footage of a man they want to speak to after a woman was sexually assaulted in Stockwell, south-west London. Detectives are investigating after a woman in her 20s was dragged to the ground and attacked outside Strudwick Court in Binfield Road around 4am on 2 April.

The victim's screams managed to alert nearby members of the public and the suspect ran off towards Stockwell tube station.

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As part of the investigation, police have now issued footage of a man walking along Clapham Road, near to Stockwell Underground Station, who they wish to speak to.

Police are also continuing to appeal for witnesses to come forward, especially a woman who they believed responded to the victim's screams and another who assisted the victim.

The man in the CCTV is described as short, around 5ft 5ins tall, tanned or ''dark skinned European'' with dark hair. He is possibly aged in his late 20's and wearing a blue coloured jacket over a white shirt, dark red coloured trousers and brown shoes.

Detective Inspector Suzanne Jordan, from the investigating team, said: "Stranger attacks of this nature are fortunately rare, and with this investigation we are working hard to identify a suspect and prevent any further incidents occurring.

"I am appealing to anyone who thinks they recognise the man in the CCTV we have released to contact us. Their information could be crucial to our investigation.

"We believe a number of people would have been in the vicinity at the time of the offence. We are urgently seeking to speak to any person who may have information in relation to this incident, or the identity of the assailant.

"We are particularly keen to speak to a woman, who we believe helped disturb the attacker making him flee the scene before anything worse happened. Hopefully this person will know who they are, as they helped direct another man to assist the victim, and will contact us to assist our investigation."

Any witnesses, anyone who has any information, or anyone who recognises the man in the CCTV is urged to contact the investigation team on 020 8721 4106, or via 101, or by tweeting @MetCC.