Detectives are hunting a man who sexually assaulted a woman in an underpass in Sheffield.
The attacker struck on Moore Street in Sheffield city centre at 2am on Sunday, March 8.
He grabbed the woman from behind, assaulted her and ran off.
The culprit was Asian, in his mid to late 30s, around 5ft 8ins tall and was wearing a dark coloured thick jumper or jacket with long sleeves.
Anyone able to identify him should call police on 101.