The Bay Area Rapid Transportation union went on strike Monday, forcing public transportation to a screeching halt.
The unions are demanding pay increases after years of cutbacks.
The two unions, representing nearly 2400 train operators, went on strike Monday after talks broke down on Sunday.
There are currently no talks between the unions and management scheduled, so it's unknown how long the strike may last.
The strike is affecting 400,000 commuters who use the BART service every day.
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