Concord June 21, 2022 11:08 pm Heat to Blame for BART Train Derailment in Concord Two cars on a BART train heading toward San Francisco jumped the tracks Tuesday afternoon and initial assessment shows heat played the main role in the partial derailment. Cheryl Hurd reports. US & World Videos 1:43 Kari's forecast: Warm day, Saturday rain 2:33 Downtown First Thursdays offers new hope to struggling SF merchants 2:41 College-bound students face deadline to apply for state aid 0:22 Violence at UC Berkeley protest encampment results in injuries 0:34 President Biden to visit Bay Area for fundraiser