Moscow again struck Ukraine’s energy infrastructure, part of an effort to wear down the country. “In the trenches, there are no holidays,” one man said.

Igor Kirillov, who was named the head of Russia’s nuclear defense forces in April 2017, was under sanctions from several countries including the U.K. and Canada for his role in Ukraine.

Ukraine could consider continued transit of Russian gas on the condition that Moscow does not receive money for the fuel until after the war, President Volodymyr Zelenskiy said on Thursday.

Ukraine’s Security Service has claimed responsibility for killing Lt. General Igor Kirillov, head of the military’s nuclear, biological and chemical protection forces, in a bombing in Moscow

Earlier, a Russian cargo ship that Kyiv says was intended to collect weapons from military bases in Syria sunk on route in the Mediterranean Sea. Officials in Moscow said two crew members are missing after an engine room explosion sank the Ursa Major between Spain and Algeria.

Zelensky warns of greater military cooperation between Moscow and Pyongyang, including sending more troops and military equipment