Overview of the <a href="https://en.wikipedia.org/wiki/2015_Philadelphia_train_derailment" class="extiw" title="w:2015 Philadelphia train derailment">derailed Amtrak train</a> in Philadelphia, Pennsylvania in May 2015. (Original caption: "Train at point of rest following the derailment.")
National Transportation Safety Board
2015-05
<a rel="nofollow" class="external text" href="https://www.ntsb.gov/investigations/AccidentReports/Pages/DCA15MR010_Preliminary.aspx">Preliminary Report: Railroad ​DCA15MR010</a> (released June 2, 2015)