A Chicago police office was taken to a hospital Tuesday afternoon after accidentally shooting himself during a drill at O’Hare International Airport.

The officer was participating in a drill about 2:15 p.m. at an administrative building at O’Hare when his firearm accidentally discharged and struck him, according to Chicago Fire Department officials.

The officer was taken to Lutheran General Hospital with an injuries that was not life-threatening, the officials said.

Chicago police have not released details about the incident.