A 69-year-old woman saw an unknown person standing on her back porch and looking through her back door window around 7 a.m. Wednesday near the 100 block of North Clark Street.
Bloomington Police Department Sgt. Dana Cole said the victim believed the suspect was a man around 5 feet,10 inches and wore a black ski mask and dark clothes.
Cole said the woman was home alone and had just gotten out of the shower.
The victim told police the suspect saw her and walked off the back porch heading south.
Police are attempting to locate the suspect, and the investigation is active.