Medics and officers responded to the scene, a Safeway gas station at 9262 Rainer Ave. South, at about 1:15 p.m. after receiving a report of a vehicle crashing into a gas pump.
Arriving at the scene, they found a man who was trapped between his car and the gas pump when it was struck by the SUV. The man, in his 40s, was extricated and taken to Harborview Medical Center for treatment of a critical arm injury.
A Seattle Fire Department tweet said a second person also was hurt. No other information was available about that person.
Police said the driver of the SUV appeared to be under the influence of drugs or alcohol. A drug recognition expert was called to the scene to join the investigation.