Armen Sarkisyan, a criminal authority from the era of Ukrainian pro-Russian ex-president Viktor Yanukovych, was blown up in Moscow. Meanwhile, Ukrainian drones attacked the Volgograd oil refinery and Astrakhan gas processing plant in Russia.

Drones and missile attacks have repeatedly targeted oil refineries, as well as sites belonging to the military-industrial complex.

Drones attacked a key Russian gas processing plant in Astrakhan, which affects the Russian military-industrial complex, said Andriy Kovalenko, head of the Center for Countering Disinformation at the National Security and Defense Council.

The drones, operated by the SBU and the Special Operations Forces, targeted the flare farm, two primary processing units, and two technological units at the Volgograd oil refinery, an SBU source said.

Ukrainian drones on Monday struck energy facilities in southern Russia, triggering fires at a major oil refinery and gas processing plant and disrupting

Russia launched a barrage of drones and missiles on Ukraine on Saturday, killing 15 people and damaging dozens of residential buildings as well as energy infrastructure across the country, Ukrainian officials said.

Social media video shows a fire at a major Russian gas facility that Ukraine claims to have attacked:::: Astrakhan region, RussiaThe governor of Russia's Astrakhan region said that a gas processing plant in the region had suspended operations before coming under a Ukrainian drone attack overnight on Sunday.