Two West Virginia towns have been evacuated after a freight train carrying crude oil derailed and burst into flames. At least 14 cars were affected and one plunged into Kanawha River, state officials said. Rail company CSX said in a statement that one person was being treated for potential inhalation, but no other injuries were reported. Residents of Adena village and Boomer have been urged to evacuate after the accident happened at 13:30(18:30 GMT). West Virginia American Water shut down a treatment plant, located three miles away an hour after the derailment, spokeswoman Laura Jordan said. The plant serves about 2,000 customers. The state was under a winter storm and getting heavy snowfall at times, with as much as five inches in some places. It is unclear wether the snow contributed to the crash. The train consisted of two locomotives and 109 rail cars and was travelling from North Dakota to Yorktown, Virginia.