Russia-Ukraine war: List of key events, day 1,236

Russian drone attacks killed a 53-year-old Ukrainian man in Ukraine's Sumy region and left parts of the city of Sumy without power, the Kyiv Independent reported, citing local authorities. Ukraine's SBU intelligence service said it killed several Russian secret service agents during an operation to arrest them in the Kyiv region on Sunday. The SBU said it believed the agents were behind the killing of its colonel, Ivan Voronych, in Kyiv on Thursday. Russia's Ministry of Defence said its forces have captured the villages of Mykolaivka and Myrne in Ukraine's eastern Donetsk region. The United Nations's nuclear watchdog reported hearing hundreds of rounds of small arms fire late on Saturday at Ukraine's Zaporizhzhia nuclear power plant, which is occupied by Russian forces.