A small plane crashed in Enumclaw Thursday night, injuring three people on board.

Enumclaw Fire Department says the small plane, a Cessna 172, crashed near the Enumclaw Airport off 244th Avenue SE around 9 p.m.

Three people were taken to Harborview Medical Center in Seattle. As of Saturday, a man and woman were listed in stable condition while a second male remained in serious condition, according to a Harborview nursing supervisor.

Witness Darren Rawie, who snapped a photo of the downed plane, said the crash happened at Rainier Trails near Enumclaw High School.

Allen Kenitzer, with the Federal Aviation Administration, said they still don't know what caused the crash or if the plane was scheduled to take off or land at the nearby airport.

The FAA and the National Transportation Safety Board (NTSB) will lead investigation efforts.