Multiple people were shot at a 4th of July parade in Highland Park, Illinois, according to an official.

Illinois Rep. Bob Morgan tweeted Monday that he was at the parade and there were multiple injuries.

A video by an apparent witness shows people fleeing the sound of gunfire.

Witnesses told the Chicago Sun Times they saw at least five people lying on the ground in pools of blood and another under a blanket.

This is a developing story. Check back soon for updates.