2 Marysville school children slightly injured, taken to hospital, after their school bus collides with a tractor-trailer on Highway 9 near Marysville.

Two children hit their heads when a school bus and a semi truck crashed near Marysville. The crash occurred on Highway 9 at 84th Street shortly after 9 a.m. Both an 8-year-old and a 6-year-old hit their heads during the crash and were transported to the hospital as a precaution, according to the Mukilteo School District. The Washington State Patrol said their injuries were minor. The driver was not hurt. The two children were the only passengers on the bus. WSP said the school bus was unable to stop in time and hit the semitruck from behind. The front end of the bus was damaged and it's windshield smashed. The Washington State Department of Transportation said northbound SR 9 is closed during the investigation. Snohomish County is growing in population, and with this growth comes increases in traffic, congestion, and accidents. At this link you can learn more about the issues related to Snohomish County car accidents and personal injury claims.