Unexplained , intermittent failures persist despite repairs , Metro official says . Metro has said it will operate the subway trains on manual control until officials have identified and fixed the problem with the automatic train system . Passenger recalls loud bang , `` accordion-like '' collapse of floor , screams . Score: 7 9 people killed , scores injured in June 22 crash near Red Line 's Fort Totten station .
Unexplained , intermittent failures persist despite repairs , Metro official says . Passenger recalls loud bang , `` accordion-like '' collapse of floor , screams . Score: 7 9 people killed , scores injured in June 22 crash near Red Line 's Fort Totten station .