A 20-year old man has been rushed to hospital in Bristol by air ambulance after being hit by a car near Homebase in Bath.
Reports of the collision between the car and pedestrian were received by emergency services around 1.20pm.
Police have confirmed that the collision came after an incident of shoplifting in the shop.
The injured pedestrian is believed to have serious leg, arm and pelvis injuries.
Officers arrested one man at the scene under suspicion of dangerous driving and are looking for another man who ran from the scene.
They are appealing for witnesses to come forward.