Ukrainian President Volodymyr Zelenskyy said Tuesday that Kyiv had not received firm assurances from Russia that it would stop attacking energy infrastructure, casting doubt on President Donald Trump’s announcement that Moscow and Kyiv had agreed to halt such strikes.

Trump announced Monday that Russia and Ukraine had agreed not to attack each other’s energy targets. Zelenskyy said Ukraine was prepared to support a halt in strikes if the United States could secure a credible commitment from Moscow to comply.

“We need specifics,” Zelenskyy said, emphasizing that any arrangement would need to be reliable, long-term and produce a tangible effect for civilians. He said Ukraine had not formally endorsed the agreement described by Trump.

The Kremlin has welcomed the proposal but has not confirmed that a formal agreement was reached. Russian officials have instead indicated that additional issues would need to be addressed as discussions continue.

The uncertainty was underscored Tuesday as Russia and Ukraine continued carrying out strikes against energy-related targets. Russia launched roughly 200 drones at Ukraine overnight, damaging infrastructure including petrol stations in Kyiv, while Ukraine reported striking a Russian oil refinery and other facilities.

The proposed energy truce comes as attacks on Russian oil infrastructure have contributed to fuel shortages and disruptions in global energy markets. Trump has urged Ukraine to stop targeting Russian refineries, while Kyiv has maintained that its strikes are responses to Russia’s continued attacks on Ukrainian infrastructure.