Sanford police said they are investigating several reports of a man exhibiting sexually explicit behavior in the city.Police said they received several calls regarding the man on Sunday.Callers said the man made inappropriate sexual comments to women walking in different areas of the city.The man was later seen at two Aroma Joe's locations in Sanford.Police said at both Aroma Joe's the man "touched himself sexually" and tried to get into the buildings.The man left before officers arrived and no one was hurt, police said.Police said the man was described as 25-35 years old, with a thin build, withbrownish-blonde hair in a ponytail or man bun.Police said he was driving a beat up, dark-colored Chevrolet pickup truck.Police said the description of man and truck matches similar incidents over the past week in Portland, Gorham and Scarborough.In the Portland incident, a jogger reported being followed by a man in a truck who exposed himself to her. The woman said she was followed until she went to a nearby fire station for help.Two women at the University of Southern Maine campus in Gorham reported a man in a truck exposed himself to them before leaving the area.Anyone with information on the Sanford incident is asked to call police at 207-324-9170 Ext 225.