PHILADELPHIA — An Amtrak train from Washington, D.C., to New York City derailed Tuesday night in Philadelphia, killing at least six people and sending more than 140 passengers to area hospitals, with at least eight suffering from critical injuries, Politico reported.

Amtrak said 238 passengers and five crew members were on board during the crash, which the Federal Railroad Administration (FRA) said occurred around 9:30 p.m. The FRA said it was sending eight investigators to the scene, including acting Administrator Sarah Feinberg. For the full story, click here.

Meanwhile, NPR reported that Mayor Michael Nutter officially confirmed the "black box" has been recovered and has been sent to the Amtrak Operations Center in Delaware for analysis. Robert Sumwalt, an NTSB board member, said that box would be key in the investigation because it would give a readout of how fast the train was traveling or if the engineers had braked or sped up. For the full story, click here.