The Washington Post says Ukraine has informed the White House that President Volodymyr Zelenskyy has decided to fire his top military commander.
The newspaper on Friday quoted sources as saying White House officials neither supported nor objected to the decision, but acknowledged it as the president's sovereign choice.
The Post reported that no time frame has been given for the ouster of Valerii Zaluzhnyi, the commander-in-chief of Ukraine's armed forces. It noted that the advance notice to Washington reflects the influential role of the United States as Ukraine's most powerful backer.
People familiar with the matter reportedly said that Zelenskyy could choose to delay action on the decision indefinitely but that appeared unlikely.
Observers have pointed out the rift between Zelenskyy and Zaluzhnyi over the years. Media outlets have reported on their latest clash over the general's request to mobilize 500,000 new soldiers.
Ukraine's defense ministry has denied Zaluzhnyi's dismissal.
Meanwhile, Russia and Ukraine have continued to target the other's infrastructure facilities. A Russian drone attack in Ukraine has caused widespread power outages.
In Volgograd in southern Russia, local authorities said a drone attack caused a fire at an oil refinery.