(Reuters) - A CSX Corp oil train that derailed and erupted in flames in West Virginia on Monday was hauling newer model tank cars, not the older versions widely criticized for being prone to puncture, the company said.

All of the oil tank cars on the 109-car train were CPC 1232 models, CSX said late Monday. The train, which was carrying North Dakota crude to an oil depot in Yorktown, Virginia, derailed in a small town 33 miles (54 km) southeast of Charleston.

The CPC 1232 is the newer, supposedly tougher version of the DOT-111 cars that were manufactured up until 2011. The DOT-111 cars have been faulted by regulators and operators for a number of years. U.S. and Canadian authorities, under pressure to address a spate of fiery accidents, are seeking to phase out the older models. The U.S. Transportation Department has recommended that even these later models be updated with improved braking systems and thicker hulls.

On Monday, as many as nine or 10 cars on the CSX train erupted in flames after the derailment, and at least one careened into the nearby Kanawha River. The fire destroyed one house and two nearby towns were evacuated. No serious injuries were reported.

The cars were being allowed to burn themselves out.

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