Ukrainian servicemen of the 44th artillery brigade fire a 2s22 Bohdana self-propelled howitzer towards Russian positions at the frontline in the Zaporizhzhia region, Ukraine, Wednesday. (AP Photo/Danylo Antoniuk)

KYIV, Ukraine (AP) — Russia launched a rare drone and missile attack on western Ukraine overnight, officials said Thursday, striking targets including an American-owned electronics plant and injecting further uncertainty into the U.S.-led efforts to end the three-year-old war.

The aerial assault on a part of Ukraine that has largely avoided such focused attacks was one of Russia’s biggest this year and came amid Moscow’s objections to key aspects of proposals that could end the fighting following Russia’s February 2022 invasion of its neighbor.

U.S. President Donald Trump discussed the war with Russian President Vladimir Putin in Alaska last week before hosting Ukrainian President Volodymyr Zelenskyy and European leaders at the White House on Monday.

Russia’s Defense Ministry said the strikes targeted “enterprises of the Ukrainian military-industrial complex,” including drone factories, storage depots, missile launch sites and areas where Ukrainian troops were gathered. Russia has repeatedly denied targeting civilian areas of Ukraine.

But in a post on X, Zelenskyy wrote that “the Russians practically burned down an American company producing electronics — home appliances, nothing military.”

“The Russians knew exactly where they lobbed the missiles. We believe this was a deliberate attack against American property and investments in Ukraine,” Zelenskyy wrote, adding: “Telling attack, right as the world awaits a clear answer from Russia on negotiations to end the war.”

Trump last month questioned Putin’s commitment to ending the war, saying the Russian leader “talks nice and then he bombs everybody.”

In a social media post Thursday, Trump criticized his predecessor, Joe Biden, for not providing Ukraine with more weaponry it needs to “fight back.”

“It is very hard, if not impossible, to win a war without attacking an invaders country,” Trump said. “It’s like a great team in sports that has a fantastic defense, but is not allowed to play offensive. There is no chance of winning! It is like that with Ukraine and Russia.”

The White House didn’t immediately respond to a request for comment on whether Trump is considering changes to the types of weapons the U.S. will provide to Kyiv.

Russia has fired nearly 1,000 long-range drones and missiles at Ukraine since Monday’s White House talks, according to Ukrainian tallies.

European countries are discussing how they can deploy military assets to deter any postwar Russian assault on Ukraine. But the Kremlin won’t accept the deployment of any troops from NATO countries, and Russian Foreign Minister Sergey Lavrov said Wednesday that making security arrangements for Ukraine without Moscow’s involvement was pointless.

Putin is ready to meet with Zelenskyy to discuss peace terms, Lavrov said Thursday, but only after key issues have been worked out by senior officials in what could be a protracted negotiating process because the two sides remain far apart.

Ukrainian and European leaders have accused Putin of stalling in the peace efforts in the hopes that his bigger army, which has been making slow advances, can capture more Ukrainian land.

Zelenskyy condemned the attack amid the push for peace and accused Moscow of “trying to wriggle out of holding a meeting” between Putin and himself.

“They don’t want to end this war. They continue their massive attacks on Ukraine and their ferocious assaults along the frontline,” Zelenskyy wrote on X. “They even lob missiles at an American enterprise, alongside many other purely civilian targets.”

He also urged the international community to respond with stronger pressure on Moscow, including tougher sanctions and tariffs.