A car with two passengers traveling along the Berkeley Marina drove off the road and into the bay about 11:58 p.m. Saturday.
Both occupants were able to extricate themselves from the vehicle and reach the shore with assistance from Berkeley Police Department, according to BPD Lt. Andrew Rateaver.
The driver has been arrested on suspicion of driving under the influence, Rateaver said.
Police are still working on removing the vehicle from the water.
Check back for updates.