The explosion occurred at around 05:30 on Monday.
Information about casualties is not available.
Preliminary information indicates that 705 kilometers of roads will have to be restored in the Lugansk region and 228 kilometers in the Donetsk region.
The enterprise produced 300 freight cars in June, compared with about 1,000 per month in 2013.
Director of Economic Research at Antitrust division of the US Department of Justice Russell Pittman shares his point of view on Ukrainian railways reforming and discusses the ways of development of competition and investment attraction.