All staff and patients at Lakeridge Health Port Perry were evacuated after a roof fire engulfed the hospital on Friday night.

Durham police responded to the call for the incident near 451 Paxton St. just before 8 p.m. after heavy smoke was seen billowing in the air by a passerby.

The fire was contained, but the hospital was evacuated due to smoke throughout the building, Durham police tweeted Friday night.

“All patients are fine and in the process of being transported to other hospitals,” a tweet by police stated.

Police are asking patients in need of medical assistance to go to another facility.