UPDATE: 11:55 a.m. BART has resumed all train service. Expect residual delays.
The entire BART network was out of service for several hours Friday morning. The agency provided only the following:
A computer equipment problem following network upgrade work is preventing the start of service this morning. Seek alternative means of transportation.
BART is sending people to its trip planner page to find alternate ways to get around, such as AC Transit and Muni.
Streetsblog will update this post as more information becomes available.
