Colorado police are responding to what they called an attack at Boulder's Pearl Street Mall that left multiple people injured.

Authorities said the violent incident happened at 13th Street and Pearl Street on Sunday afternoon. Police asked everyone to avoid the area while first responders work the scene.

CBS

CBS

Video shows what appears to be a burn scar in front of the old courthouse and a person being taken away on a stretcher.

CBS

CBS

The Boulder Police Department has not yet released further details. This is a breaking story. More information will be provided as it becomes available.

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