CHICAGO (WLS) -- Two men were shot and killed at Navy Pier Tuesday afternoon, Chicago fire officials said.
Chicago police and fire crews responded about 1:30 p.m. for a report of shots fired in an administrative office near a loading dock in the 600-block of East Grand Avenue, police said in a news conference Tuesday.
A male employee who had been terminated the month before fired the shots, police said.
A 47-year-old man and 51-year-old man, the employee's former coworkers, were shot in the head, police said. They were taken to Northwestern Memorial Hospital in critical condition. They later died, police said.
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Their identities were not immediately released.
Navy Pier was locked down for nearly an hour, but officials called the incident at the popular tourist destination in the middle of the afternoon isolated.
Police have identified a person of interest, who is at large.
A shelter-in-place at Navy Pier was lifted after police determined through security cameras that the shooter had left the area.
Police did not say who they were looking for, only that the shooter was a former employee of a sub-contractor at Navy Pier.
There was a large Chicago police response on the north side of the pier near the parking garage. CPD officers in tactical gear were seen in the area about 2 p.m.
Area detectives are investigating.
No weapon has been recovered, and police remained on the scene about 5 p.m.
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