A ninth Russian general was reportedly killed in a Ukrainian artillery strike near Kharkiv.
Major General Anton Simonov, koora4live 55, died during the attack on a Russian army command past in northern Ukraine, President Zelensky adviser Alexey Arestovych said yesterday.
Mr Arestovych told viewers he was informed by well-placed army sources.
Simonov would be the ninth and youngest Russian general killed so far in the latest blow to Putin's disastrous invasion of Ukraine.
He was seen as the Russian military's leading electronic warfare specialist.
Major General Andrey Simonov (picture date unknown) was an electronic warfare commander
The April 29 Ukrainian artillery attack on a Russian command post in Izyum, Kharkiv region
Simonov died in a devastating fightback by the Ukrainians against a Russian offensive.
Simonov led electronic warfare within the 2nd Combined Arms Army and is a former cyber commander of the Western Military District.
Footage of the strike on the Izyum command post on April 29 was re-shared after it emerged Simonov may have been killed.
The Ukrainian Army said it destroyed 30 Russian vehicles during the artillery assault.
Simonov's alleged killing adds to the 36 colonels and more than 300 Russian officers who have died in Ukraine so far.
Simonov, 55, poses in his military uniform in this undated image of the electronics expert
The Ukrainian Ministry of Defence claimed this morning it has killed 23,500 Russian soldiers, destroyed 1,026 tanks and wrecked nearly 200 planes since the war began.
Daily Mail foreign columnist Ian Birrell tweeted: 'Russia is losing one general a week on average in Putin's disastrous war, which must be an almost unprecedented rate of attrition for such senior officers.'
But Sinonov's death alongside 100 Russian troops - and the reported loss of armoured vehicles - indicates another setback for the Kremlin leader.
Putin has aimed to declare the success of his mission on 9 May, Victory Day in Russia, marking the anniversary of the end of the Second World War.
From Kirov region, the Major-General was a graduate of the Tomsk Higher Military Command School of Communications.
Just two weeks ago Russia's eighth slain general Vladimir Frolov's grave in St Petersburg was pictured.
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