Three freight trains collided in Texas before dawn Wednesday, derailing up to 30 wagons and injuring four crew members, including two critically.
An eastbound BNSF Railway train rear-ended a stopped train, then moments later a westbound train collided with the two-train wreck, just east of Amarillo, according to the Department of Public Safety. The accident was reported shortly after 4.30am (local time).
"The wreckage was mangled up," said Senior Trooper Chris Ray.
Joe Faust, a spokesman for Fort Worth-based BNSF, said no hazardous material spilled and the trains were hauling flatbed wagons carrying truck trailers.
The cause of the accident was under investigation, Faust said.
Two workers on the first train suffered injuries not believed to be life-threatening. Two crew on the second train were critically injured and transported to a hospital, Faust said.
Preliminary estimates indicate between 20 and 30 wagons derailed, Faust said. Rail traffic was being rerouted and heavy equipment would be used to clear the tracks, he said.
Faust said there was no immediate timetable for clearing the tracks.
No nearby residents were in danger due to the accident.