OPP investigating serious collision in St. Clair Twp.

Road closed. (Ontario Provincial Police photo)

One person was transported to hospital with life-threatening injuries following a two-vehicle crash in St. Clair Township Wednesday afternoon.

Lambton OPP, Lambton EMS, and St. Clair Township Fire responded to the intersection of Petrolia Line and Kimball Road at around 2:35 p.m.

The intersection was expected to be closed for several hours as the investigation continues.

Motorists were being urged to find an alternate route.

The OPP said updates will be provided once they become available.