The activist-turned-fighter was killed when his battalion came under Russian artillery fire in north-eastern Ukraine.

Anti-Kremlin activist Ildar Dadin, who was imprisoned in Russia for protesting against Vladimir Putin, was killed on the front line in Ukraine where he was fighting alongside Kyiv forces, his relatives and Russian media said Sunday.

The Russian opposition figure Ildar Dadin, known by the nickname "Gandhi," who fought on Ukraine's side, has died. Former "Echo of Moscow" journalist Ksenia Larina reported his death on the X platform.

Russian opposition activist Ildar Dadin has been killed in action in Ukraine, where he was fighting on Kyiv's side. Source: Ksenia Larina, a former journalist for radio station Ekho Moskvy (Echo of Moscow);

Russian opposition activist Ildar Dadin, who had joined Ukraine’s armed forces, was reportedly killed in battle in the Kharkiv region, according to former Echo of Moscow journalist Ksenia Larina.

"I have just been informed that Ildar Dadin has been killed. In combat in Kharkiv Oblast," Larina wrote. Read also: Russian Freedom Legion volunteer reveals purpose of operation in Russian Federation Larina told the news outlet Sota that she learned of Dadin's death from another participant in the war,

The Russian opposition figure Ildar Dadin, known by the nickname "Gandhi," who fought on Ukraine's side, has died. Former Echo of Moscow journalist Ksenia Larina reported his death on the X platform.