An Amtrak train has crashed in Philadelphia

AP Photo/Paul Cheung

An Amtrak train crashed Tuesday, May 12, 2015, near Philadelphia. Train 188 was traveling from Washington to New York City.

An Amtrak train traveling from Washington DC to New York has crashed in Philadelphia, according to published reports. The crash Tuesday night left several people injured.

Train 188, a Northeast Regional, had left Washington, D.C., earlier Tuesday. The front of the train was going into a turn when it shook.

An Associated Press employee, Paul Cheung, was on the train and said it appeared it went off the tracks. He said he was fortunate to be at the back of the train and the front of it "looks pretty bad."

Police swarming around the crash site, in Port Richmond, a working-class area, told people to get back, away from the train.

AP Photo/Paul Cheung

A passenger is carried following an Amtrak train crash Tuesday, May 12, 2015, near Philadelphia. Train 188 was traveling from Washington to New York City.

Former Congressman Patrick Murphy was on the train and said he helped people. He tweeted photos of firefighters helping people in the wreckage.

"Pray for those injured," he said.

The cause of the crash was unknown. Amtrak didn't immediately return a phone call seeking comment.

AP Photo/Paul Cheung

Passengers of an Amtrak train that crashed gather Tuesday, May 12, 2015, near Philadelphia. Train 188 was traveling from Washington to New York City.

Another Amtrak train crashed on Sunday. That train, bound for New Orleans, struck a flatbed truck at a railway crossing in Amite, killing the truck's driver and injuring two people on the train.

Here's a look at how the crash is playing out on social media: