BART officials this morning are reporting service has been truncated at the Bay Fair station due to a disabled train.
The Bay Fair station is currently closed due to a train experiencing a lot of smoke.
Firefighters have responded to the scene and are investigating the incident.
There have not been any reported injuries.
BART officials said trains are turning back multiple locations.
There is parallel bus service with A/C Transit. Commuters can take Bus 10 to San Leandro and Hayward and Bus 28 to Castro Valley.
BART riders should expect major delays in the Richmond, Warm Springs and Daly City directions.
The incident was first reported around 6 a.m.