A Ukrainian official says that another Russian general has been killed in fighting. Anton Gerashchenko, an adviser to Ukraine’s Interior Ministry, said Saturday that Russian Maj. Gen. Andrei Kolesnikov was killed in action during the fighting over Mariupol. He would be the third Russian general to die in the war, according to Ukrainian officials. Also read: Ukraine says Russia shelled mosque in besieged Mariupol Kolesnikov’s death wasn’t confirmed by the Russian military, which has kept a tight lid on information about its losses. Previously, unofficial Russian sources confirmed the death of one Russian general. The death of Maj. Gen. Andrei Sukhovetsky, the commanding general of the Russian 7th Airborne Division, was confirmed by his colleague and the officers’ association in southern Russia. The death of another general, Maj. Gen. Vitaly Gerasimov, wasn’t confirmed by any Russian sources. Also read: Russia-Ukraine war: Key things to know about the conflict

A Russian general was killed in the fighting around Kharkiv, Ukraine’s second-largest city, which Russian forces have been trying to seize since the invasion began, the Ukrainian military intelligence agency said. It identified him as Maj. Gen. Vitaly Gerasimov, 45, and said he had fought with Russian forces in Syria and Chechnya and had taken part in the seizure of Crimea in 2014. Also read: Crisis deepens, Ukraine accuses Moscow of 'medieval' tactics It was not possible to confirm the death independently. Russia has not commented. Another Russian general was killed earlier in the fighting. A local officers’ organization in Russia confirmed the death in Ukraine of Maj. Gen. Andrei Sukhovetsky, the commanding general of the Russian 7th Airborne Division. Sukhovetsky also took part in Russia’s military campaign in Syria. Also read: Russia snubs UN court hearings in case brought by Ukraine