Russia's Defense Ministry, meanwhile, said its forces downed at least 66 Ukrainian drones overnight into Tuesday morning. Among the areas targeted was the southwestern Voronezh region which borders northeastern Ukraine. At least 16 people were injured there, Gov. Aleksandr Gusev said on Telegram.

Trump announced new weapons for Ukraine and threatened "biting" secondary tariffs of 100% on the buyers of Russian exports unless there is a peace deal in 50 days.

Trump asked Volodymyr Zelenskyy whether Ukraine could strike Moscow, an inquiry that the White House says was merely a question but one that came hours after he voiced frustration at Putin’s refusal to accept a ceasefire.

Russia targeted Ukraine with more than 1,800 drones, 1,200 guided aerial bombs and 83 missiles of various types, President Zelenskyy said.

Ukraine's security agency says it has killed Russian agents suspected of assassinating a senior officer in Kyiv.

Trump's moves underline his growing disenchantment with Russian President Vladimir Putin over the lack of progress in U.S.-led efforts to secure a ceasefire.

Ukraine’s Security Service said Sunday they had killed Russian special service agents suspected of gunning down a fellow officer in Kyiv earlier this week, saying it believed Russia’s Federal Security Service was responsible.

It is indicative of how Russia’s allies are propping up this war effort,” Angelica Evans from the Institute of the Study of War told The Post.