No fewer than 136 people have been reported injured and 5 dead following the derailing of the Amtrak Northeast Regional Train.
The passengers were travelling from Washington to New York when it derailed in the Port Richmond neighborhood of Philadelphia about 9:30 p.m. Tuesday.
The impact tore cars apart and left the engine a mangled mess, CNN reports.
The northeast corridor, which spans from Washington to Boston, is the busiest passenger line in the country, and the train was carrying 238 passengers and 5 crew members.
The cause wasn’t immediately known.
“We do not know what happened here. We do not know why it happened,” Nutter said.