(Reuters) -Russia’s defence ministry denied a report published by the U.S. Embassy in Kyiv on Wednesday that its forces had shot and killed 10 people waiting in line for bread in the Ukrainian city of Chernihiv, and said there were no Russian troops in the area. The embassy did not say what evidence it had for the attack in a statement posted on its official Twitter site and its Facebook page. Ukraine’s general prosecutor’s office said it had opened an investigation into the alleged incident. Russia has called its military actions in Ukraine a “special operation”. It denies targeting civilians…