ST. LOUIS, MO (KTVI)-One person is listed in critical condition after a fire in north St. Louis Saturday night. The St. Louis Fire Department tweeted they were battling heavy flames in the 5000 block of Maffitt at 11:45 p.m.

Fire officials said a man had collapsed inside the home. He was revived while en route to an area hospital.

There is no word on the cause of the fire.