PORT TOWNSEND — A three-car collision occurred just after noon Tuesday on eastbound state Highway 20/Sims Way. One car stopped and was rear-ended, and the third vehicle collided with the rear of the second vehicle, East Jefferson Fire-Rescue Public Information Officer Patricia Willestoft said. Of the five adults and two children involved, only minor injuries were reported, Willestoft said. Both children were in car seats, she said.