A gunman opened fire onto a Fourth of July parade in Highland Park, Illinois from a nearby rooftop, police said.
Six people were killed in the shooting, and 24 have been hospitalized.
Local police officials and the FBI said they are still searching for the shooter.
A gunman opened fire from a rooftop onto a Fourth of July parade in Highland Park, Illinois, on Monday morning, police said.
After the shooting that killed six people and sent another 31 to the hospital, multiple witnesses told local news broadcaster WGN that they saw the shooter on the rooftop of a nearby business.
Local police officials confirmed those reports at a press conference Monday afternoon.
"It does appear that he was shooting from a roof. The roof that he was shooting from — I don't have that information right now," Chris Covelli, the public information officer for the Lake County Sheriff's Office, told reporters.
Police said the suspected shooter has not yet been identified or detained, though a rifle was recovered from the scene. Authorities described the suspect as a white man between 18 and 20 years old with long dark hair, a small build, and wearing a white or blue t-shirt.
"We would still consider him to be armed and dangerous," Covelli said, encouraging everyone in town to stay indoors.
The FBI is helping to investigate and search for the suspect, police. The bureau requested that anybody with video of the area contact them to share the footage by contacting investigators at 1-800-CALL-FBI.
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