Wellington OPP are investigating a head-on collision between two sedans on Highway 6 Saturday night.
Police responded to the scene outside Alma at around 7:45 p.m.
OPP say the driver of a southbound vehicle was transported to hospital with life threatening injuries, while the driver of a northbound vehicle was uninjured.
Highway 6 was closed between Side Road 21 and Wellington Road 17 while police investigated, but has since re-opened.
Wellington OPP is asking anyone that may have witnessed this collision to please call 1-888-310-1122.