The delay is impacting trains at the Fremont BART station in the Richmond direction, according to officials.
The delay was first reported just after 4 a.m.
Switching problem fixed! BART trains moving again btw Fremont & Hayward- 20 min residual delay remains. pic.twitter.com/0yPYKvSu4c
— Alexis Smith (@AlexisABC7) March 3, 2017