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.

Ukraine is believed to have launched a new drone attack on Russia, targeting a major oil depot in the southern Krasnodar region. Kyiv has stepped up its aerial attacks across Russian regions over the winter, as it seeks to disrupt fuel and ammunition supply lines to Putin's army in Ukraine.

Kyiv says it struck a Russian oil refinery and a microchip factory in attack which Moscow says contained 120 drones

More than 100 Ukrainian drones targeted various regions of Russia on Thursday night, according to Russian authorities.

It came as Russia and Ukraine swapped 150 prisoners of war each and UK foreign secretary David Lammy met with Ukrainian president Volodymyr Zelensky in Kyiv. A series of drone attacks by Ukraine on Russia's energy facilities have sparked fires in recent days at a major oil refinery in the Volgograd region,

Heavy fighting continues as Russian and Ukrainian forces exchange intense strikes. Kyiv launched a series of drone attacks targeting Russian energy facilities, sparking a blaze at oil depots in Krasnodar.

Ukrainian forces have launched new drone strikes on Russia, targeting an oil depot in the southern Krasnodar region.