LONDON (Reuters) – A Russian general was killed in eastern Ukraine, a Russian state media journalist said on Sunday, adding to the string of high-ranking military casualties sustained by Moscow. The report, published on the Telegram messaging app by state television reporter Alexander Sladkov, did not say precisely when and where Major General Roman Kutuzov was killed. There was no immediate comment from the Russian defence ministry. Russian forces have intensified attacks to capture Sievierodonetsk, a key city in Ukraine’s eastern Donbas region that Moscow is targeting after failing to take t…