The RCMP officer is in stable condition in hospital after suffering injuries in an altercation during the stop.
Cpl. Carol McKinley says the officer from the Spirit River detachment responded to a call about an erratic driver on Wednesday afternoon near Wanham, Alta.
She says the altercation took place after the suspect vehicle was stopped.
Additional RCMP officers arrived at the scene and the injured officer was flown to a local area hospital by air ambulance.The extent of the member's injuries or whether a weapon was used in the attack is still unknown.
With files from The Canadian Press
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