Man drags woman into an Edinburgh alley before sexually assaulting her 27 June 2013 Last updated at 11:58 A man who dragged a woman into an Edinburgh alleyway before sexually attacking her is being sought by police. The 20-year-old was walking in the Canongate at about 06:30 on Tuesday when she was attacked in a close at Old Tolbooth Wynd. The assault ended abruptly and it is thought the man may have been disturbed by a passer-by. He then ran out of the close and towards the Scottish Parliament. The attacker is white, 5ft 6ins to 5ft 7ins, with short side-swept fair/blond hair and slim. He was wearing a dark coloured hooded top, jeans and light coloured trainers. Det Sgt Iain Ramsay, of Police Scotland, said: "This was an unprovoked assault on a young woman returning from a night out by a man who had been in her company earlier in the evening. It only ended when the suspect was disturbed by the presence of a member of the public who may have been jogging in the area and prevented the incident becoming more serious. While we are following a positive line of enquiry, anyone who was in the area at the time and may have seen or heard a distressed female, or spotted a man fitting the description running down the Canongate yesterday morning, is asked to contact police immediately.