BART’s Hayward station was shut down for hours Tuesday because of a possible stabbing reported there, according to a spokesperson for the transit agency. BART initially reported the station closure at about 10 a.m. and said trains were continuing through the Hayward station without stopping. BART spokesperson Chris Filippi said two people were detained following the possible stabbing. The investigation prompted the station to remain closed until about 1 p.m., he said. No other details about the case were immediately available.