From RIA Novosti:
MOSCOW, April 27 – RIA Novosti. The State Duma ratified on Tuesday the agreement between Russia and Ukraine to extend the Russian Black Sea Fleet (BSF) on the Crimea for 25 more years after May 28, 2017, with [the possibility of] further prolongation of the agreement by five-year periods by mutual agreement of the parties.
410 deputies have voted unanimously for this treaty. The members of the LDPR faction did not participate in the voting. As previously stated by the leader of the Liberal Democrats, Vladimir Zhirinovsky, the LDPR faction will not vote for ratification of the agreement with Ukraine on the extension of the Black Sea Fleet in Crimea, because there is no assurance that this contract will be performed by the Ukrainian side. As a second reason the party’s leader called it to be “the wrong approach from the beginning.”
Earlier on Tuesday, the agreement that has been signed by the presidents of two countries on April 21, was ratified by the Verkhovna Rada of Ukraine.
Note that Russia’s Black Sea Fleet is stationed in Sevastopol which is situated on the Crimean Peninsula, which today forms part of independent Ukraine.