Delaware State Police are investigating the derailment early Sunday morning of a Norfolk Southern freight train.
A preliminary investigation found the freight train – which consisted of 70 stone-hauling cars hauling being pulled by two locomotives – derailed around 4 a.m. while traveling south along tracks in a wooded area north of Millsboro.
Fifteen of the train cars were forced off the track and overturned, spilling stone, while the rest remained upright, according to authorities.
Police said the two locomotives also derailed but remained upright.
No injuries were reported to the train conductor or onboard engineer, but investigators said a section of railroad track approximately a quarter mile in length was either destroyed or heavily damaged in the derailment.
Responders found the accident did not result in hazardous conditions, nor did it pose a threat to the environment or surrounding communities.
Police said there were no detours or road closures Sunday as a result of the crash.
Troopers, along with Norfolk Southern officials, remained on the scene Sunday afternoon as they continued to investigate the derailment's cause.