The California Highway Patrol received reports of a vehicle that crashed into the center divide near the Alvarado-Niles off-ramp on southbound I-880 at about 1 a.m., Officer James Evans said.
All lanes on southbound I-880 were closed at 1:07 a.m. as crews cleared the scene, Evans said. At 5:32 a.m., all lanes were reopened, he said.
Evans said the cause of the crash was not determined as of 7:50 a.m.
