Breaking News
Russia's Black Sea Fleet has given Ukrainian forces in Crimea until 5:00 local time (03:00 GMT) on Tuesday to surrender or face an all-out assault, according to Ukrainian defence ministry sources quoted by Interfax-Ukraine news agency. "If by 5am tomorrow morning they do not surrender a real assault will begin on units and sections of the Ukrainian armed forces all over Crimea," defence ministry officials are quoted as saying. So far there is no further confirmation of the ultimatum from other sources.
http://www.bbc.co.uk/news/world-europe-26413953