Crimea's parliament applied to become part of Russia on Monday, a day after a referendum in the southern Ukrainian region showed overwhelming support for joining the Russian Federation.
The parliament "made a proposal to the Russian Federation to admit the Republic of Crimea as a new subject with the status of a republic," according to a statement on its website.
A Crimean parliamentary delegation was expected to arrive in Moscow on Monday to discuss the procedures required for the Black Sea peninsula to become part of the Russian Federation.
The vast majority of residents of Crimea - 96 percent - voted to secede from Ukraine and rejoin Russia, in a referendum held March 16.
With the exception of Russia most countries refused to recognize the referendum and its results.
A change of power took place in Ukraine on Feb.22.
The Verkhovna Rada (parliament) ousted President Viktor Yanukovych from the power, changed the constitution and scheduled presidential elections for May 25. Yanukovych said that he was forced to leave Ukraine under the threat of violence, and he remains the legally elected head of state. A number of provinces in eastern and southern Ukraine, as well as the Crimea did not recognize the legitimacy of the Rada and decided on possibility of holding a referendum on the future fate of the regions.