An 18-year-old woman died Sunday morning after her car veered off Interstate 84, fell into a ditch and struck a tree, state police said.

The teenager was the only occupant of the white 2011 Kia Rio, which was headed westbound on I-84, police said. The car went off the road just before 6 a.m., west of the Rowena exit.

The motorist was identified as Aileen Pineda-Garcia, of The Dalles.

Speed and the slick road conditions likely contributed to the single car crash, investigators said. The motorist was wearing her seat belt at the time of the crash.

Oregon State Police, the Mid-Columbia Fire Department and state transportation officers responded to the scene.

-- Maxine Bernstein

mbernstein@oregonian.com

503-221-8212

@maxoregonian