CHICAGO — A Chicago police officer shot a man who climbed five flights of a fire escape and infiltrated a training exercise at a CPD facility on the West Side late Monday morning, according to CPD Supt. David Brown.

Members of the CPD’s SWAT team were conducting a training exercise on the fifth floor of the CPD’s Homan Square facility around 11:30 a.m. Monday.

As the training was underway, a man — a 47-year-old from Waukegan — approached the guard in the building’s parking lot to ask where he should go to recover some of his personal property, Brown said. The Homan Square facility is home to the CPD’s Evidence and Recovered Property Section.

After he ignored the guard’s direction, the man walked to one of the building’s fire escapes and climbed up five flights, Brown said. The man entered the building when he reached the fifth floor, where the door was propped open to help the building’s ventilation.

As part of the training, officers were asked to put their guns on a table. The ammunition in those was replaced with non-fatal rounds designed for training purposes, Brown said.

The man picked up at least two guns and pointed them at officers in the room, Brown said. One officer then shot the man. Brown said his injuries were not life-threatening.

No CPD officers were shot, though one officer was taken to Mount Sinai Hospital with an ankle injury, Brown said.

The Civilian Office of Police Accountability said Monday afternoon that the agency is investigating the shooting.