By CBS3 Staff

WEST GROVE, Pa. (CBS) — Police are investigating a sexual assault in the West Meadows development in West Grove. Police say a woman was home alone when she answered the door for a man posing as a contractor.

Police say the victim, who was on the phone with a relative at the time, let the suspect inside when he began physically assaulting her and she lost consciousness.

Credit: CBS3

The victim’s relative heard her screaming and called 911.

Police say a suspect is a white man in his mid-50s with a heavy build and a bald head. He was wearing khaki pants and a light blue shirt with the name “Jeff” on a name tag.

Police are urging people in the area to stay alert of any unusual activity and report anything immediately.

If you have any information, call police at 610-268-2907.