The additional copies will be mostly distributed in the city, but RedEye said it will also be available at every Metra commuter train station in the suburbs as well as in Chicago.

The tabloid, with readership skewed to youths, was launched on Oct. 30, 2002 as a paid paper.

Last year RedEye grew aggressively, increasing its weekday distribution by 50 percent, and launching a home delivery-only free Saturday edition.

RedEye said its weekly readership is 700,000.

"This milestone marks a terrific five years for us. More importantly, it gives us a chance to welcome new readers to RedEye and provide greater exposure for our growing advertiser base," RedEye General Manager Brad Moore said in a statement, according to Editor & Publisher.