Serbian President Aleksandar Vucic said on Wednesday that Serbia will not recognize the results of referendums held in four regions of Ukraine partially occupied by Russian forces, despite Belgrade's warm ties with Moscow.
Russian-backed authorities in the four regions say they expect a large majority in favor of joining Russia based on vote counts in referendums, which Kiev and the West have denounced as illegal fake votes held at gunpoint.
Russian President Vladimir Putin is expected to announce the annexation of four regions; Donetsk, Luhansk, Kherson and Zaporizhia, in a speech on Friday.
"Serbia ... will not recognize (referendums) as it adheres to international law, the United Nations Charter and UN resolutions," Serbian President Vucic told reporters on Wednesday.
The Kremlin supports Belgrade in its continued opposition to the recognition of Kosovo's independence, which was declared in 2008 with the support of the United States and major Western countries.
"We are defending our territorial integrity and it is in our best interest to defend the territorial integrity of other internationally recognized countries," said the Serbian president, stressing that his country is under pressure due to its stance towards Moscow.
Serbia, a candidate for European Union membership, depends on Russia for its natural gas supplies and has refused to join Western sanctions against Moscow over its aggression in Ukraine.
Belgrade faced criticism from the United States and the European Union after it signed an agreement with Russia on mutual "consultations" on foreign policy issues in New York last Friday.