NEEDHAM (CBS) – Police are investigating after a man asked a group of girls for directions — with no pants on.

According to police, a man in a small white sedan stopped on Dedham Avenue to ask the girls for directions. When they approached the passenger side of the vehicle, they saw he had no pants on.

The girls immediately backed away from the car, which then drove toward Needham Square.

The man is described as white, about 30 and possessing dark hair and a dark beard.