Immigration officials arrested 18 gang members or associates during a three-day sweep this week in the Chicago area.
The arrests were made by agents with the U.S. Immigration and Custom Enforcement's Homeland Security Investigations in Chicago, Cicero and Berwyn.
The ICE said those arrested -- age 18 to 42 -- all are documented members or associates of one of the following gangs: Latin Kings, Two-Six Boys, Two-Two Boys, Ambrose, Surenos 13 or the Bishops.
All but one of those being held have criminal histories involving various felony convictions and three previously had been deported.
One of those arrested is from El Salvador and the others are from Mexico and all are in ICE custody on administrative immigration charges pending deportation.