A 21-year-old San Jose woman was killed Sunday morning in a solo vehicle crash on the connector from westbound Highway 237 to northbound 101 in Sunnyvale, the California Highway Patrol reported.
The driver of the vehicle, a 17-year-old girl, was placed under arrest on suspicion of DUI, CHP Officer Ross Lee said. She was seen walking around on the highway.
The San Jose woman was found inside the driver's vehicle.
The collision was reported shortly after 5 a.m. A Chevrolet Silverado pickup truck landed on its roof against a tree, the CHP reported.
The CHP issued a Sig-alert at 6:58 a.m. because of the blocked connector ramp, and it reported at 10:06 a.m. that all lanes had reopened.
The victim will be identified by the Santa Clara County Office of the Medical Examiner-Coroner, Lee said. Authorities are not identifying the suspect in the crash because the person is a minor.
NBC Bay Area staff contributed to this report.
