(CNN) -- Western powers slapped sanctions on more than two dozen Russian officials and their allies in Ukraine's Crimea region on Monday, while Ukrainian officials vowed they would never accept the territory's annexation by Russia. In a televised address Monday night, interim Ukrainian President Oleksandr Turchynov said his government would do "everything possible" to solve the crisis diplomatically, and he praised his citizens for refusing to respond to Russian provocations with violence. "The Kremlin is afraid of the democratic future which we are building, and this is the reason for their aggression," Turchynov said. "But this will not be an obstacle to the building of a democratic country."
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"We offer peace, and Russia offers war," Ukraine's prime minister tells CNN
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EU sanctions 21 Russians; U.S. announces sanctions on 11
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Putin recognizes breakaway Crimean republic
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U.S. sanctions "a great honor," Putin adviser says
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The @placeholder parliament is expected to vote on whether to annex the breakaway territory in the coming days.
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The EU sanctions include the top @placeholder secessionist leaders, 10 leading Russian lawmakers who have endorsed the annexation of Crimea and three top Russian military commanders.
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"The international community will continue to stand together to oppose any violations of Ukrainian sovereignty and territorial integrity, and continued Russia military intervention in @placeholder will only deepen Russia's diplomatic isolation and exact a greater toll on the Russia economy," he said.
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About 60 Russian troops took part in the operation, which the Russians said was needed to prevent a possible terrorist attack on oil assets, according to @placeholder border guards.
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The area supplies electricity, fresh water and natural gas to the @placeholder.
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MAP: Why the EU and @placeholder are out of step on Russia sanctions