A 54-year-old man was taken to Harborview Medical Center Tuesday morning with life-threatening injuries after he was possibly hit by a vehicle on Sunset Boulevard Northeast, according to the Renton Police Department.

Multiple passersby called 911 to report the man laying on Sunset near Hoquiam Avenue Northeast at about 5:50 a.m. Tuesday.

The Police Department is investigating the injury as a possible hit-and-run accident, based on the man’s “significant injuries,” said Detective Robert Onishi, a police spokesman.

However, he said, “we don’t know that for certain.”

That’s why investigators are asking that anyone who saw a hit-and-run accident or the man prior to police arrival call the Police Department at 425-430-7500 and refer to case No. 12-4424.

The intersection of Sunset and Hoquiam is just east of the Sunset commercial area in the east Highlands, out of view of most houses.