The Crimean parliament declared that all Ukrainian state property on the peninsula will be nationalized and become the property of the Crimean Republic. It gave no further details.
Lawmakers also asked the United Nations and other nations to recognize it and began work on setting up a central bank with $30 million in support from Russia.
The United States announced sanctions against seven Russian officials, including Rogozin, Putin's close ally Valentina Matvienko who is speaker of the upper house of parliament and Vladislav Surkov, one of Putin's top ideological aides.
The Treasury Department also targeted Yanukovych, Crimean leader Sergei Aksyonov and two other top figures.
The EU's foreign ministers slapped travel bans and asset freezes against 21 officials from Russia and Ukraine following Crimea's referendum. The ministers did not immediately release the names and nationalities of those targeted by the sanctions.
"We need to show solidarity with Ukraine and therefore Russia leaves us no choice," Polish Foreign Minister Radoslaw Sikorski told reporters in Brussels before the vote.
"The `Anschluss' of Crimea cannot rest without a response from the international community."
He was referring to Nazi Germany's forceful annexation of Austria.
But markets appeared to signal that the Western sanctions lacked punch - with bourses both in Russia and Europe rising sharply on relief that they won't hit trade of business ties.
"So far the sanctions seem fairly toothless and much less severe than had been expected last week," said Kathleen Brooks, research director at Forex.com. "From the market's perspective, the biggest risk was that the referendum would trigger tough sanctions against Russia that could lead to another Cold War."
