OAKLAND — California Highway Patrol officers were at the scene of a vehicle-pedestrian collision that left a woman with major injuries Tuesday, authorities said.

Shortly after 6:15 p.m., CHP officers responded to northbound Interstate 880 lanes at the 29th Avenue on-ramp for an officer’s report of a collision, a CHP officer said.

When officers arrived, they found a woman on the roadway’s right-hand side and a white Ford F-250 pickup truck that came to rest in the center divide.

Officers called for an ambulance, and the woman was taken to an area hospital for treatment. Her condition was not immediately available Tuesday night.

Officers issued a Sig-alert at 6:24 p.m., closing the off-ramp and Nos. 3 and 4 lanes, but canceled the alert by 6:40 p.m.

Anyone who witnessed the crash is asked to contact the CHP’s non-emergency hotline at 800-835-5247.

Contact George Kelly at 408-859-5180.