CHICAGO (WLS) -- At least four people have been robbed in the past week in a string of violent armed robberies on the city's North Side.
Police say the group of three or four thieves will start talking to the victim in the Lakeview neighborhood before knocking them out.
All of the robberies have happened during the overnight hours.
The robberies occurred on July 19, 20 and 25.
Times and locations are listed below:
3500 block of N. Clark on July 19 at 12:30 a.m.
3300 block of N. Halsted on July 20 1:15 a.m.
3200 block of N. Halsted on July 25 at 5:30 a.m.
In the incident on Clark, the offenders were described as being four black men between 25-30 years old, and one white female, 25-30 years old.
In the incident on the 3300 block of Halsted, the offenders were described as three black males and one black female.
In the 3200 block of Halsted incident, there were three black male offenders, mid- to late 20s, 5'10"- 6'0" tall, with slim builds.