WALDPORT – A Portland man was killed Thursday night when the car in which he was riding left Oregon Highway 34 three miles east of Waldport and crashed into trees on the side of the road.

Oregon State Police said Jack H. Walton, 51, of Portland was riding in the Chrysler Sebring driven by Jacob H. Walton, 24, of Troutdale, when the younger Walton lost control of the car and crashed into the trees at 7:41 p.m., according to Oregon State Police.

Jack Walton died at the scene of the crash; Jacob Walton was taken by Life Flight helicopter to a hospital.

State police said in a news release that speed and suspected impairment are believed to have been contributing factors in the crash. The highway was impacted for approximately eight hours during the investigation, police said.