On September 8, 2015, at 12:34 a.m. central daylight time, westbound Union Pacific Railroad (UP) freight train AMNML-07 (striking train) collided into the side of northbound UP freight train ALDAS-06 (struck train) near Texarkana, Texas. The striking train was traveling west on the main track of the Pine Bluff Subdivision, and the struck train was traveling north on the Little Rock Subdivision. The trains collided at a diamond crossing (Texarkana Interlocking) of the two subdivisions. Two locomotives of the striking train and seven cars (numbers 13–19) of the struck train derailed. The engineer and conductor of the striking train sustained minor injuries; neither crewmember in the struck train was injured. The lead locomotive of the striking train released about 4,000 gallons of diesel fuel. The locomotive event recorder data indicated the striking train was traveling at 19 mph when the engineer made an emergency brake application. At the time of the collision, the train had slowed to about 6 mph. The estimated damage was $4.66 million. At the time of the accident, it was dark, the sky was clear, the visibility was 10 miles or more, and the temperature was 82°F.