A serious two vehicle crash in Norwich Township sends four people to hospital.

Police say the crash happened around 12:15 p.m. on County Road #13 at the intersection of Pleasant Valley Road.

Both vehicles involved in the collision were travelling southbound on County Road #13 when one vehicle struck the other from the rear.

A male driver and female passenger along with two children, ages 4 and 6 years, were taken to Tillsonburg Hospital.

Both children have since been transferred to London Health Science Center with life threatening injuries.

The other driver was treated at the scene for minor injuries.