Now on BBC, as well:
The prime minister of Crimea has asked Russian authorities for help in maintaining peace in the region.
“I appeal to the president of the Russian Federation, Vladimir Putin, to provide assistance in ensuring peace and tranquillity on the territory of the Autonomous Republic of Crimea,” Serhiy Aksyonov said in a statement.
He also said he was taking control of Crimea’s interior ministry, armed forces, fleet and border guards “on a temporary basis”.
“All commanders are to obey only my orders and instructions,” Mr Aksyonov said. “I ask all those who refuse to do so to resign.”
http://www.bbc.com/news/world-europe-26394846