SAN FRANCISCO (KRON) -- BART is advising its riders to seek alternative forms of transportation Friday morning as service across all lines is suspended.

The suspension in service is due to a computer equipment problem that followed a network upgrade, according to the Bay Area Rapid Transit District.

There is no estimated time for service to resume normal operations.

Commuters can use BART’s Trip Planner to find alternative transportation options, the agency said.

This is a developing story. Check back for updates.

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