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 2:14 Bay Area family returns from Lebanon 2:21 Bay Area groups prepare for Oct. 7 anniversary 2:24 College GameDay comes to UC Berkeley 1:51 Lake County fire burns 403 acres 2:48 Cal linebacker Teddye Buchanan expresses excitement for “College GameDay”