Russia has vowed to "intensify" its strikes on Kiev in response to Ukrainian drone attacks on Moscow, as Ukraine's President Volodymyr Zelenskyy said he had agreed to meet US counterpart Donald Trump in New York after the two held a phone call.
Ukraine fired waves of drones at Moscow and the surrounding region on the final day of voting, killing two people and setting an oil refinery ablaze, officials said.
Russia's defence ministry accused Ukraine of attempting to "disrupt the democratic will of Russian citizens" and vowed a response.
Russian polls
An exit poll published by a state-run pollster showed United Russia on course to win 49.4 percent of the vote, around the same it achieved in the previous election.
"In response to the Kiev regime's attacks on civilian targets within Russia, the Russian army will continue and intensify its high-accuracy strikes against military targets in Kiev," the Russian defence ministry said.
The attack was the largest on Moscow and involved some 1,600 drones, 450 of which were aimed directly at the capital, Moscow Mayor Sergei Sobyanin said.
Zelenskyy to meet Trump
Zelenskyy praised the attacks, saying, "Our long-range responses had a very significant impact in the Moscow region last night."
"One of Russia's key oil industry facilities and the aggressor's logistics facility were hit. These are billions of dollars that sustain the war machine," he said on X.
Later, Zelenskyy said he had agreed to meet Trump in New York after the two held a phone call.
"I just spoke with President Donald Trump. An important conversation, and we got through a lot," Zelenskyy said in a post on Facebook.
"We agreed to meet in New York, and this meeting could change a lot. There is diplomatic momentum," he said.
