TAMPA, Fla. (WFLA) — Six people were killed and 15 others were wounded in a Fourth of July parade in a suburb of Chicago, and the shooter remains at large, authorities said.

The Highlands Park Police Department said in a news release that it was responding to an active shooter situation that occurred Monday morning in downtown Highland Park, Illinois.

At the time, they said five people were confirmed deceased, and 16 others were taken to area hospitals. Another person later died, bringing the death toll to six, according to the Chicago Sun Times.

A video provided by Storyful shows a crowd of paradegoers flee the area as shots rang out.

The Times report noted there was a heavy police presence in the area for the parade, and that officers had been patrolling the area with rifles.

Police said they are still searching for the gunman, and are asking residents nearby to stay inside. Festivities in nearby communities have been canceled, News Nation’s Brian Entin reported.

Illinois Gov. J.B. Pritzker said he was “closely monitoring the situation” and that Illinois State Police were assisting.

Highland Park is an affluent suburban city located about 25 miles north of downtown Chicago.

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