A 51-year-old woman died in a single-car crash on Port Chicago Highway in Concord early Monday morning, police said.
The woman was a passenger in a vehicle headed in the northbound direction near High School Avenue when it hit a light pole about 1:45 a.m., according to a release from police.
The driver, a 37-year-old man, was taken to a hospital with major injuries.
Northbound Port Chicago Highway, between High School Avenue and North Sixth Street, was closed for approximately three hours.
The collision is still under investigation. Any witnesses are asked to contact Traffic Officer Wilson at (925) 603-5962.