NTSB Releases Documents on Casselton Train Derailment

The NTSB releases nearly 1,800 documents on the oil train derailment near Casselton in December 2013.

The accident docket includes photographs and interview summaries.

The NTSB says it does not contain analysis, only facts and that the factual report, analysis, conclusions and probably cause of the accident will be issued at a later date.

The derailment, fire and explosions set off a push for increased rail safety and training for first responders.