The driver, a 26-year-old man and the passenger, a 22-year-old woman, were trapped inside and cut out of the vehicle by the Seattle Fire Dept, Det. Mark Jamieson said.
Both were taken to Harborview Medical Center. The man suffered serious but non-life threatening injuries while the woman had only minor injuries.
About 2:15 a.m., a patrol officer saw the white, 2002 Chevy Avalanche SUV speed past on Rainier Ave. South and the driver nearly hit the officer's patrol car.
The officer lost sight of the speeding vehicle, but police found it at Rainier Ave. South and South Charlestown St. after it had crashed into the corner of a building there causing significant damaage to the building.
Ronnie Tramble, whose family owns Emerald City Fish & Chips, showed up later to survey the damage.
"Man, why us?" he said. "We got broken (into) twice, now this."
"We'll make it," he added.
The Seattle Police Dept.'s Traffic Collision Investigation Squad responded and took over the investigation.