Declaration of a state of emergency in the southern region of Crimea is one of the options being studied to resolve the crisis unfolding there, the top security official in Ukraine's new power structure told Russian news agency Interfax.
"It is one of the options in the development of events," Andriy Paruby, secretary of the National security and Defence Council was quoted as saying by Interfax, replying to a journalist's question on whether a state of emergency might be introduced.
But he said, even if this did occur, it would not mean deploying the army and existing security units would still have to handle the situation. "So we are looking for other more effective ways of localising the situation on the Crimean peninsula," he said.
Pro-Russia activists recaptured administrative headquarters in the Ukrainian city of Donetsk and flew the Russian flag from its roof.
ITV News' Europe Correspondent describes the tense atmosphere surrounds a central government building in Donetsk .
New footage obtained by ITV News shows Russian troops firing warning shots as Ukrainian soldiers approached during a tense stand-off today.