GOODWELL, Okla. (AP) — Three Union Pacific crew members remain missing after two trains collided in the Oklahoma Panhandle, causing a white-hot fire that emergency crews are struggling to extinguish.

Oklahoma Highway Patrol Trooper Betsy Randolph says the fire near Goodwell is contained but still burning Monday morning. A National Safety Transportation Board team is investigating the Sunday morning crash.

Each train carried two crew members, and officials say one conductor survived after jumping off the train. Three crew members are missing.

Randolph says firefighters from Fort Worth, Texas, are en route with fire-suppressing foam after hundreds of gallons of water failed to put out the blaze. After the fire is extinguished, crews must wait for the metal to cool before they can safely search the trains for any sign of the missing crew.