EVERETT, Wash. -- State troopers are investigating a serious crash on US Highway 2 in Snohomish County.
As of 7:00 a.m. Tuesday, the crash was blocking both directions of US 2 at Three Lakes Road.
According to the Washington State Patrol, four cars were involved. Troopers said the car that started the crash crossed the center line of the highway. The people inside that car suffered serious injuries. It's unclear how many people were hurt.
Traffic was being alternated around the crash scene.
This is a developing story and will be updated.