Dzianis Sidarenka

Dzianis Uladzimiravich Sidarenka (; 10 March 1976 – 24 June 2024) was a Belarusian diplomat.

Life From 1996 to 1997, Sidarenka took part in an international programme in political and social sciences at the Paris Institute of Political Studies and left with a diploma. He finished his studies in international relations at the Belarusian State University in Minsk with distinction in 1997.

The next year, Sidarenka joined the Belarusian Foreign Ministry's service and worked for the Pan-European Cooperation section in the Department for Europe. In 2002, he was acting leader of the Permanent Delegation of the Republic of Belarus at the Organization for Security and Co-operation in Europe (OSCE) in Vienna. He came back to Belarus in 2005 and took over the leadership of the section for the OSCE and the Council of Europe at the Foreign Ministry.

Personal life Sidarenka was married and father to two daughters. Besides Russian and Belarusian, he spoke English, French and German.

The Belarusian news outlet Nasha Niva quoted unnamed sources who said that "[Sidarenka] did not get out of polygraphs and interrogations," further adding that "It is said in Minsk that all career diplomats returning from the EU are now subject to close operational scrutiny by special services" — that is to say, the KGB.

For her part, Katherine Brucker, the Chargée d’Affaires of the United States Mission, speaking to the OSCE's Permanent Council, said that Sidarenka had died "under circumstances that are unclear and very troubling," and she asserted that there had been "reports" that "his body showed signs of torture." However, no evidence was presented to corroborate these assertions.

The Belarusian Foreign Ministry made an announcement about the diplomat's death only after he had been buried, without naming the cause of death. Western media likened the circumstances of Sidarenka's death by falling out a window to the way in which some earlier critics of Russia and Belarus had died, as well as to Vladimir Makei's likewise surprising death in 2022.