A Hydro woman died Saturday morning after a collision in Caddo County, the Oklahoma Highway Patrol reported.
About 11 a.m., Twila Marshall, 55, was driving a pickup east on County Road 1020. A northbound tractor-trailer on County Street 2585 failed to stop at the T-intersection, troopers said, and the pickup struck the rig.
Marshall, who died at the scene, was wearing a seat belt, troopers said.
The accident remains under investigation.