Six people were killed when a gunman opened fire at a Fourth of July parade in Highland Park, Illinois, and more than two dozen people were taken to area hospitals with injuries, officials said. Some of the victims, including at least one child, were in critical condition when they were transported from the scene, Highland Park Fire Chief Joe Schrage told reporters.

Robert "Bobby" Crimo III, who had been identified as a person of interest, was arrested around 6:30 p.m. local time in connection with the shooting, nearly nine hours after the shooting. Officials said his vehicle was spotted and he was stopped after a brief pursuit. He is being taken to the Highland Park Police Department as the investigation continues.