Police are warning residents after three women were sexually assaulted in Logan Square and Palmer Square.
The most recent assault occurred around 3:40 a.m. Sunday in the 2600 block of North Troy Street, police said. The others occurred Jan. 14 at 9:30 a.m. in the 3400 block of West Armitage Avenue and Jan. 18 in the 2800 block of West Bloomingdale Avenue at 3:10 a.m.
In each of the assaults, the man approaches women from behind, either on the sidewalk or in the hallway of apartment buildings, and assaults them; twice he was armed with a sharp object, police said.
The man is described as unshaven, with short black hair, brown eyes and between the ages of 29 and 35, police said. He stands between 5 feet 6 and 5 feet 10.
Anyone with information can call (312) 746-6554 or submit an anonymous tip at CPDTIP.com.