Officers wrestled a man to the ground Tuesday after he approached them with a rifle during a road stop on Highway 16 about 22 kilometres west of Tete Jaune Cache.
RCMP said in a press release that police fired a shot but no one was injured.
The driver reportedly exited his vehicle, armed himself with a rifle and approached police after his vehicle was pulled over.
He was taken into custody and transported to McBride Hospital for medical assessment.
"The investigation into this matter is ongoing," said Const. Lesley Smith, North District Media Relations Officer.
"The Independent Investigations Office was notified but will not be conducting their own investigation."