Essex County OPP are investigating after a fatal single-vehicle rollover crash in northwest Leamington.

Emergency crews were called to Highway 3 near Morse Road early Wednesday evening for a collision.

Police say two people were confirmed dead at the scene and four others were taken to hospital with varying injuries.

Highway 3 was expected to remain closed for several hours between Highway 77 and Essex County Road 31, as is Morse Road between Essex County Road 18 and Mersea Road 3.

Motorists were being asked to avoid the area if possible as the investigation continues.