Bay Area Rapid Transit (BART) service has been fully restored Friday, after the agency dealt with a computer outage that shut down the entire system during the morning commute.

Bay Area Rapid Transit, the main commuter rail system for the region, was forced to close for most of the Friday morning commute.

BART carries nearly 175,000 people most weekdays. The system went down shortly after 5 a.m. and service wasn't fully restored until around 9 a.m., complicating morning commutes. BART also runs to the San Francisco International Airport. Alternate ferry and bus service stepped up to help passengers reach destinations.