08/08/2013 06:00 EDT | Updated 10/08/2013 05:12 EDT

RCMP investigate after ambulance and van collide near Tofield, Alta.

TOFIELD, Alta. - RCMP are investigating a crash involving an ambulance and a van east of Edmonton.

Police say the ambulance was en route to Edmonton with a patient in serious condition when a van failed to pull over.

Police say the van turned in front of the ambulance near Tofield and the two vehicles collided.

The patient in the ambulance was transported to hospital by helicopter.

Police say the driver of the van was injured and was sent to hospital in another ambulance.