Police are looking for two men who assaulted an elderly man on the CTA's Blue Line.
The fight was captured on video and posted on YouTube.
The recording shows two men taking turns smacking and jabbing an elderly man on the Blue Line near the Racine stop.
The victim never filed a report according to Chicago police, but community leaders are calling for justice to be served so police have launched an investigation.
The video has been watched 90,000 times.
It did capture the faces of the attackers. It's not clear when the attack happened.
The CTA is turning over additional surveillance video to police.
Police want the victim to come forward and file a report.
Community activist Andrew Holmes was passing out flyers to those who ride the Blue Line earlier today. He’s encouraging people to call his tip-line at 1-800-U-TELLUS if you have any information on this attack.