LIVE UPDATES: Russian Su-35 Jets Destroy Two Ukrainian Su-25 and One MiG-35, MoD Says

"The losses of the Ukrainian army are really very high, much higher than what the office of the president officially declares… They are greatly underestimated, there are clearly not 10, but at least 50-70 thousand losses," the hacker said on condition of anonymity.

Oleksiy Arestovich, an adviser to the head of Ukraine's presidential office, said at the start of June that up to 10,000 Ukrainian troops have been killed since the start of Russia’s special operation.

UN Under Secretary-General for Political Affairs Rosemary DiCarlo said at the end of last month that a total of 4,731 civilians have been killed during the conflict in Ukraine and 5,900 others have been injured.

Last month, EU Council President Charles Michel said that the European Union is looking into the possibility of confiscating assets of sanctioned Russian individuals and entities.

DONETSK (Sputnik) - The Ukrainian armed forces shelled the Shakhtyorsky district in the Donetsk People's Republic (DPR), where activists of the Molodaya Respublika (Young Republic) non-governmental organization were located, killing three people, and injuring another 11, DPR head Denis Pushilin said on Sunday.

"This morning, the Ukrainian militants fired at the Shakhtyorsky district, where activists of the Molodaya Respublika were on a volunteer mission. As a result, 11 people were injured, and three were killed. Search work is underway for four people," Pushilin wrote on Telegram.

Last month, European Commission President Ursula von der Leyen said that over the course of the crisis in Ukraine, 7.5 million Ukrainian refugees have arrived in the European Union, and three million are still staying in the EU.

According to its MoD, Russian forces eliminated up to 100 soldiers of Ukrainian artillery units and destroyed over 1,000 m777 munitions and 700 Grad rockets at a depot in Slavyansk on Sunday.