Officials at Harborview Medical Center said the two drivers who were injured in a car crash Monday at the Agate Pass Bridge are both in “serious” condition at the Seattle hospital.

“Serious” is the level just below “critical” condition.

The drivers, a 54-year-old man and a 75-year-old woman, are both being treated in the hospital’s Trauma Intensive Care Unit.

The accident occurred at approximately 2:09 p.m. on Highway 305 between the Agate Pass Bridge and Reitan Road. A Kia Sedona minivan heading south on the highway crossed the centerline and struck a Lexus sedan, police said.

Traffic was blocked for more than four hours on both sides of the Agate Pass Bridge until it was reopened just before 6 p.m. Monday.