Astoria dispatch received a report of a vehicle abandoned on the Astoria Bridge near the center span about 3 p.m. Friday, police said.
Oregon State Police, Astoria Police, Clatsop County Marine Patrol and the Coast Guard checked above and below for bridge for any pedestrians, but none was located. The abandoned vehicle was removed under its own power.
Attempts to contact the person associated with the vehicle have been unsuccessful so far, police said. His identity was not disclosed pending contact with his family.
State police are handling the investigation. Anyone with information is asked to call 503-325-2231.