Kyiv, Ukraine - President Donald Trump said Sunday that Russia and Ukraine had agreed to halt strikes on each other's energy infrastructure, surprising Ukrainian officials, while Russia did not immediately confirm the deal. Ukrainian President Volodymyr Zelensky even alleges a Russian attack occured after Trump's "energy ceasefire" claim.

The announcement comes two days after Trump announced a temporary easing of sanctions on Russian diesel, prompting outrage by Ukraine and its European allies, who argued it only emboldened Russia's President Vladimir Putin.

Trump, whose war against Iran has led to global oil shortages, has blamed Ukraine's strikes on Russian refineries for sending diesel prices soaring, creating major risks for his party in US elections next month.

"Effective immediately, there is an ENERGY CEASEFIRE in the War between Russia and Ukraine. Both parties have agreed. Do not break it!" Trump wrote on his Truth Social network, without further details.

Ukraine Conflict Zelensky bashes calls for Ukraine to replace him as president while Trump touts apparent "energy ceasefire"

Zelensky appeared blindsided by Trump's announcement, telling the Axios news outlet that it was "news for me." He later said Russia hit a Ukrainian power plant "after" Trump's energy ceasefire statement.

"The Russians struck a power plant in Kyiv with a 'shahed' drone," Zelensky said in a social media post, adding that strikes on other energy facilities followed in the Kharkiv region.

"And all of this happened AFTER the President of the United States made his statement about an energy ceasefire," he added.

Before announcing the latest strike, Zelensky had said that he and Kyiv's allies were "awaiting details" of the ceasefire, noting he supports any steps toward de-escalation in the conflict.

"Ukraine supports the ceasefire, and it is important that Russia support it as well," Zelensky said on his Facebook page, after speaking with the leaders of Canada, Finland and NATO.

Russia has launched waves of attacks on Ukrainian energy infrastructure since invading in February 2022, knocking out power and heating to millions during freezing temperatures, while Ukraine has systematically struck Russian oil refineries that it says fund the war.

Ukraine's largest private energy provider, DTEK, announced fresh power outages in the capital Kyiv on Sunday amid the attacks.