Ukraine war: Russia blames US and vows response for Crimea deaths BBC.comRussia summons US ambassador over ‘barbaric’ Sevastopol missile strike Al Jazeera EnglishRussia placing military near civilians in Crimea, to deter attacks: ISW Business InsiderKremlin Warns US of ‘Consequences’ After Crimea Strike Kyiv PostUkraine sends over 30 drones into Russia The Associated Press