SEATTLE - One man was killed overnight when a suspected drunk driver crashed at high speed into his car and an ambulance just outside Swedish Medical Center, police and fire officials said.

None of the five people in the ambulance was hurt. The causing driver sustained minor injuries and was placed under arrest, police said.

Officers were on the scene, at Boren Avenue and James Street, almost immediately after the crash at about 12:15 a.m. Wednesday.

"After the crash I heard sirens. There was lots of cops coming. Within seconds there was like four cop cars," said one witness.

A preliminary investigation found that an Acura sedan was travelling west at a high speed on James Street when it slammed into a Toyota Prius that was heading south on Boren Avenue, said Detective Mark Jamieson of the Seattle police.

The impact from the collision caused both vehicles to collide with an AMR ambulance as it was slowing to stop at the intersection.

The Prius was folded nearly in half by the force of the crash. Firefighters cut the roof off, but the 60-year-old male driver died at the scene.

The occupants of the ambulance - the AMR driver, a second AMR employee, two flight nurses and a patient - were not injured as a result of the collision.

The Acura was heavily damaged as well. The 27-year old male driver of the Acura displayed signs of impairment and was placed under arrest for investigation of vehicular homicide, Jamieson said. He was taken to the hospital for treatment of minor injuries and will be booked into the King County Jail once he is released from the hospital.

The crash closed down several blocks of Seattle's First Hill for hours, but all streets have now reopened.