Mikhno replaces Sergey Andreyev, who was recalled from his post in Warsaw in December after serving as ambassador since 2014, Polish state news agency PAP reported, citing a decree published by the Kremlin.
Born in 1972, Mikhno graduated in 1995 from Lomonosov Moscow State University and the Diplomatic Academy of the Russian Ministry of Foreign Affairs.
He has held posts at Russia’s missions to the United Nations, the Council of Europe in Strasbourg and international organisations in Vienna.
Before his appointment to Warsaw, he served as a deputy department director at the Russian foreign ministry.
His nomination comes amid strained relations between Moscow and Warsaw.
In November, Poland withdrew its consent for the operation of a Russian consulate in Gdańsk, citing Russian sabotage on its railway network.
Russia responded by closing Poland’s consulate in Irkutsk, the last remaining Polish consular post in the country.
Earlier, Poland shut down Russian consulates in Poznań and Kraków, prompting Moscow to close Polish consulates in St. Petersburg and Kaliningrad.
Tensions between the two countries have escalated sharply since Russia’s 2022 invasion of Ukraine.
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Source: IAR, PAP