Cumbria Police are appealing for information after a woman in her fifties reported being the victim of a sexual assault in Wigton.
The attack allegedly took place on the High Street and Croft Court in the town.
Officers were called at 8.43pm yesterday, and an investigation is underway.
Detectives are trying to trace a white man, described as being of average height, medium build and aged between 25 and 30.
Police are urging anyone with any information to call 101.