ANN ARBOR, MI (My TV20 News at 10) --- Washtenaw County Sheriff's Investigators are looking for a suspect in this week's sexual assault in Ypsilanti Township.
Investigators have released a sketch of one of the men.
He's black with a dark complexion in his 20s.
He stands more than 6 feet tall and had a thin build.
The second man has a light complexion, with a mole or birth mark on his left cheek.
He's 5 feet 6 inches tall, with a medium build.
The attack took place early Monday morning in the area of Cary Drive and Textile Road.
Investigators are also looking for a man who walked his dog there just before the attack.
You're asked to call the sheriff’s office confidential tip line, or Crime Stoppers, if you have any information.