Investigators with the York Regional Police Special Victims Unit are looking for a suspect after a teenaged girl was sexually assaulted in Newmarket Friday night.

At 8:45 p.m., the girl was walking on the east side of Yonge Street in the area of Savage Road when she saw an unknown man in a nearby wooded area.

The man followed the girl and tried to speak to her. The girl did not speak to him and tried to run away. She tripped, fell to the ground and he sexually assaulted her. The suspect then ran away, police reported.

The suspect is described as male, white, 30 to 40 years old, 6-ft. tall, short brown hair with stubble on his face, wearing blue jeans and a white t-shirt.