Police are appealing for witnesses after a woman was sexually assaulted in Hoddesdon in Hertfordshire.
It happened at about 5.30pm on Friday.
A woman in her 20s was walking along the canal tow path of the New River Path on Essex Road when she was approached by a man who grabbed her and touched her inappropriately.
As she tried to get away she was struck by the man, cutting her lip.
He's described as black, in his late 20s, with short, curly, black hair with flecks of grey in. He is about 5ft 9in tall and was wearing a red short-sleeved t-shirt with a rounded neck, blue jeans with flecks of white on them and a black belt with a silver buckle.