Police say they tried to stop a Ford F-350 in Medicine Hat early Thursday.
They say the truck drove off, but later stopped and reversed, hitting a police officer.
The truck then sped off towards Highway 3.
Both Medicine Hat police and Redcliff RCMP pursued the truck toward Seven Persons, where two vehicles were damaged before a spike belt was deployed.
The injured officer was in hospital with non life-threatening injuries.
Any witnesses have been asked to contact police.