ALLYN, Wash. - The State Patrol says one student has a minor knee injury from a collision involving a school bus on Highway 3 at Allyn in Mason County.

Trooper Krista Hedstrom in Bremerton says it happened shortly after 7 a.m. Tuesday and involved a water truck.

North Mason School District Superintendent David Petersen says the student, who was the only one on board, was walking down the aisle when the bus was struck.

The bus was making pickups for both the middle school and high school.

No one else is injured.