YPSILANTI TOWNSHIP, MI - Police are looking for a man wanted in a sexual assault that took place inside an Ypsilanti Township Walmart.

A woman was waiting in line at the MoneyGram desk in the store at 2515 Ellsworth Road when a man bumped into her several times about 6:10 p.m. July 31, according to the Washtenaw County Sheriff's Office.

The woman moved away from him, but police believe he masturbated near the woman and ejaculated on her dress.

The suspect is described as a medium-complected Hispanic man, about 17 to 25 years old and 5-feet, 3-inches to 5-feet, 5-inches tall. He was wearing a brown shirt with khaki shorts, and his hair was long on top, buzzed on the sides and pulled into a pony tail, police say.

He wore a throw blanket over his waist.

There was another, similar incident last month at Plato's Closet, 860 W. Eisenhower Parkway in Ann Arbor, said Ann Arbor Police Detective Lt. Matthew Lige.

He described it as "very disturbing behavior committed in a very public place."

"We need to get this individual identified before anyone else falls victim to these despicable acts," Lige said.

The two agencies are working together to find the suspect, he said.

The Washtenaw County Sheriff's Office asks anyone with information about the incident or the suspect to contact Detective Wagner at 734-994-2911, the confidential tip line at 734-973-7711 or Crime Stoppers anonymous tip line at 1-800-SPEAKUP.