A National Transportation Safety Board (NTSB) go-team is en route to northwest, Arkansas to investigate a train crash that reportedly injured 44 people – five of them critically.

News sources say a freight train collided with a stalled passenger train that it had been sent to assist. The passenger train was carrying tourists on a sight-seeing excursion from Springdaleto Van Buren.

Officials said a number of people were transported to hospitals by medevac helicopters, while 37 people were able to walk away from the wreck. 

Approximately 300 gallons of diesel fuel reportedly spilled near the White River.

Railroad investigator Jim Southworth is leading the NTSB team as investigator-in-charge.