A two car collision in Norwith Township has left two children in hospital with life-threatening injuries.
O-P-P say a vehicle was hit from behind when it slowed down to make a turn.
Two children in the turning vehicle suffered life threatening injuries.
They're aged 4 and 6.
The male driver and female passenger had minor injuries.
The driver of the second car wasn't seriously hurt.
No names have been released and police are still inverstigating.