Medics and officers responded to the scene, in the 9400 block of Airport Way South, at about 6:50 a.m. after receiving a report of a person struck by a car, said Mark Jamieson of the Seattle police.
Medics performed CPR on the victim. He was taken to Harborview Medical Center in Seattle with serious injuries, said Mark Jamieson of the Seattle police.
A preliminary investigation found that the bicyclist and a Nissan sedan were heading south along Airport Way South when the car struck the bicyclist, who was knocked off the bike.
A drug recognition expert officer responded to the scene and evaluated the driver of the Nissan. It was determined that the driver was not impaired. He was interviewed by investigators and released.
The intersection of Airport Way South and South Norfolk Street was closed briefly while the investigation was conducted, but the roadway is back open now.
The investigation continues.