WICHITA, Kan. — A small plane lost engine power after takeoff and crashed into a flight-training building at a Kansas airport Thursday, killing four people, injuring five others and igniting a fire that sent up towering plumes of black smoke that could be seen for miles.

Three of the dead were inside a flight simulator in the building at Wichita Mid-Continent Airport when the plane crashed into it, and the fourth was found on the roof and is believed to be the pilot, Wichita Fire Chief Ronald Blackwell said.

Five others were injured in the crash, and one of those was in serious condition at a hospital, Blackwell said. Officials said only one person was on board the plane and that everyone who was in the building had been accounted for. Identities of the victims were not immediately released.