LVIV, Ukraine (Reuters) – The European Bank for Reconstruction and Development expressed concern about the situation at Ukraine’s Chernobyl nuclear power plant on Friday following its takeover by Russian forces and a problem with its power supply. Ukraine said on Wednesday there was an increased risk of a radiation leak at Chernobyl, which suffered the world’s worst nuclear accident in 1986, after a high-voltage cable was severed during fighting and electricity to the plant was cut off. Russia’s energy ministry said on Thursday Belarusian specialists had restored the electricity supply and Rus…