A single-vehicle rollover northwest of Strathroy has left one person with life-threatening injuries.
The vehicle crashed on Sylvan Road at Bornish Drive in North Middlesex just after 11 a.m. on Wednesday.
One person was taken to hospital with life-threatening injuries.
Five other people who were inside the vehicle were assessed by paramedics on scene, but did not require additional treatment.
Sylvan Road between MacDonald Drive and Elm Tree Drive was closed for several hours while Middlesex OPP probed the cause of the collision. It was reopened around 7 p.m.
The investigation is continuing, police said.