KIEV, Feb. 16 – The U.S. Embassy in Ukraine is concerned about the potential impact on the energy system of the blockade of coal supply from the areas of Donetsk and Luhansk regions beyond Kiev control.

"We are concerned by the current disruption to the coal supply from the non-government-controlled areas of Donetsk and Luhansk and its potential impact on Ukraine's energy system, the Ukrainian economy, and the Ukrainian people," the U.S. Embassy in Ukraine said in a statement on its Facebook page.