Police are warning Humboldt Park residents of teens robbing victims at gunpoint before riding off on bicycles.
Between one and three male teens approach someone—sometimes a person in a vehicle, demand property and then ride off on bikes, according to a community alert from Chicago Police.
During the last robbery, the suspects were armed with a handgun.
The robberies happened:
—in the 4100 block of West Crystal about 7:30 p.m. on Oct. 7;
—in the 4200 block of West Division about 5:30 p.m. on Oct. 17;
—in the 4000 block of West Kammerling about 4:30 p.m. on Oct. 29.
Anyone with information should call Area North detectives at (312) 744-8263.