An Amtrak train headed to New York City derailed and tipped over in Philadelphia on Tuesday night, mangling the front of it, tearing the cars apart and killing at least five people. Dozens of passengers were injured, and some climbed out of windows to get away.
Mayor Michael Nutter, who confirmed the deaths, said the scene was horrific.
"It is an absolute disastrous mess," he said. "I've never seen anything like this in my life."
He said there were train cars that were "completely overturned, on their side, ripped apart."
"It is a devastating scene down there," he said. "We walked the entire length of the train area, and the engine completely separated from the rest of the train, and one of the cars is perpendicular to the rest of the cars. It's unbelievable."
Firefighters said dozens of people were hospitalized and six were critically injured.
Train 188, a Northeast Regional, had left Washington, D.C. The front of the train was going into a turn when it started to shake before coming to a sudden stop.
An Associated Press manager, Paul Cheung, was on the train and said he was watching Netflix when "the train started to decelerate, like someone had slammed the brake."
"Then suddenly you could see everything starting to shake," he said. "You could see people's stuff flying over me."
Passengers escape through windows
Cheung said another passenger urged him to escape from the back of his car, which he did. He said he saw passengers trying to escape through the windows of cars tipped on their side.
"The front of the train is really mangled," he said. "It's a complete wreck. The whole thing is like a pile of metal."
Another passenger, Daniel Wetrin, was among more than a dozen people taken to an elementary school afterward.
"I think the fact that I walked off [the train] kind of made it even more surreal because a lot of people didn't walk off," he said. "I walked off as if, like, I was in a movie. There were people standing around, people with bloody faces. There were people, chairs, tables mangled about in the compartment ... power cables all buckled down as you stepped off the train."
The cause of the derailment was unknown, but Amtrak said it was investigating.
The area where the derailment occurred is known as Frankford Junction and has a big curve. It's not far from where one of the nation's deadliest train accidents occurred: the 1943 derailment of The Congressional Limited, from Washington to New York, which killed 79 people.
Police swarming around Tuesday's derailment site, in Port Richmond, a working-class area, told people to get back, away from the train. They pleaded with curious onlookers: "Do NOT go to scene of derailment. Please allow 1st responders room to work."
Roads all around the crash site were blocked off. Waves of firefighters continuing toward the train cars, taking people out.
Congressman was aboard train
Several injured people, including one man complaining of neck pain, were rolled away on stretchers. Others wobbled while walking away or were put on city buses. An elderly woman was given oxygen.
Former U.S. Rep. Patrick Murphy was on the train and said he helped people. He tweeted photos of firefighters helping other people in the wreckage.
"Pray for those injured," he said.
Amtrak said the train was carrying 238 passengers and five crew members. It said rail service on the busy Northeast Corridor between New York and Philadelphia had been stopped.
The National Transportation Safety Board said it was gathering information about the derailment. It said it was launching an investigative team, which would arrive at the site Wednesday morning.
Port Richmond is one of five neighbourhoods in what's known as Philadelphia's River Wards, dense rowhouse neighbourhoods located off the Delaware River. Area resident David Hernandez, whose home is close to the tracks, heard the derailment.
"It sounded like a bunch of shopping carts crashing into each other," he said.
The crashing sound lasted a few seconds, he said, and then there was chaos and screaming.