KYIV, Ukraine — Russia battered Ukraine’s energy facilities with hundreds of drones and dozens of missiles in its latest heavy bombardment of the country’s power grid, authorities said Thursday, as Ukrainian President Volodymyr Zelenskyy prepared to ask President Donald Trump at a White House meeting for more American-made air defenses and long-range missiles.

As he considers Zelenskyy’s push for U.S. missiles, Trump said after Thursday’s call with Russian President Vladimir Putin that they will meet in Budapest, Hungary to try to bring the war to an end. No date for the meeting has been set.

Trump said in a post on Truth Social that he will discuss his call with Putin “and much more” when he meets Zelenskyy on Friday, adding that “I believe great progress was made with today’s telephone conversation.”

Meanwhile, eight Ukrainian regions experienced blackouts after the barrage, Ukraine’s national energy operator, Ukrenergo, said. DTEK, the country’s largest private energy company, reported outages in the capital, Kyiv, and said it had to stop its natural gas extraction in the central Poltava region due to the strikes. Natural gas infrastructure was damaged for the sixth time this month, Naftogaz, Ukraine’s state-owned oil and gas company, said.

Zelenskyy said Russia fired more than 300 drones and 37 missiles at Ukraine overnight. He accused Russia of using cluster munitions and conducting repeated strikes on the same target to hit emergency crews and engineers working to repair the grid.

“This fall, the Russians are using every single day to strike our energy infrastructure,” Zelenskyy said on Telegram.

The Ukrainian power grid been one of Russia’s main targets since its invasion of its neighbor more than three years ago. Attacks increase as the bitterly cold months approach in a Russian strategy that Ukrainian officials call “weaponizing winter.” Russia says it aims only at targets of military value.

Ukraine has hit back by targeting oil refineries and related infrastructure that are crucial for Russia’s economy and war effort. Ukraine’s general staff said Thursday its forces struck Saratov oil refinery, in the Russian region of the same name, for the second time in two months. The facility is located some 300 miles from the Ukrainian border. Moscow made no immediate comment on the claim.

Ukrainian forces have resisted Russia’s bigger and better-equipped army, limiting it to a grinding war of attrition along the roughly 600-mile front line snaking through eastern and southern regions.

But Ukraine, which is almost the size of Texas, is hard to defend from the air in its entirety, and Kyiv officials are seeking more Western help to fend against aerial attacks and strike back at Russia.

Zelenskyy was expected to arrive in the United States on Thursday, ahead of his Oval Office meeting with Trump today.

Ukraine is seeking cruise missiles, air defense systems and joint drone production agreements from the United States, Kyiv officials say.