Three women have been attacked over the last month in Logan Square, according to a Chicago police alert.
The latest attack occurred around 3:30 a.m. Saturday when someone approached a 36-year-old woman as she entered her building in the 2000 block of North Humboldt Boulevard, grabbed her and placed a black bag over her head, police said.
She screamed and the attacker ran down an alley north of Armitage Avenue.
About 3:30 p.m. last Thursday, police believe the same person followed a 39-year-old woman as she entered her building in the 1600 block of North Humboldt Boulevard and slammed her head against the wall before sexually assaulting her.
On April 11, the person knocked on the door of a 36-year-old woman in a building in the 2000 block of North Humboldt Boulevard and asked if someone lived there. He tried to force his way into the apartment and then pepper-sprayed the woman and ran away.
The person was wearing dark clothing with a surgical mask and a construction vest or Amazon vest. He was described as 5 feet, 6 inches to 5 feet, 10 inches tall and weighing 170 pounds.
Anyone with information can call Area Five detectives at 312-746-6554.