European and Canadian leaders met virtually Tuesday to discuss U.S.-led efforts to end the nearly four-year conflict between Russia and Ukraine, amid rising tensions over Russian claims, denied by Kyiv, of a drone attack on a residence used by President Vladimir Putin.

The talks included European heads of state, Canadian Prime Minister Mark Carney, NATO Secretary-General Mark Rutte, and European institution leaders. Polish Prime Minister Donald Tusk said that while “peace is on the horizon,” it is not guaranteed. German Chancellor Friedrich Merz emphasized that transparency is required from all parties, including Russia.

The meeting followed U.S. President Donald Trump’s hosting of Ukrainian President Volodymyr Zelenskyy at his Florida resort on Sunday, during which Trump said Ukraine and Russia are “closer than ever” to a peace agreement.

The Russian allegations involved a reported attack by Ukraine on a lakeside residence in Novgorod’s Dolgie Borody area, 400 kilometers northwest of Moscow. Kyiv called the claims false, and Kremlin officials accused Ukraine of attempting to undermine U.S. peace efforts.

Observers warn the accusations could disrupt negotiations. According to the Washington-based Institute for the Study of War, Moscow has sought to prolong talks to continue its military campaign, avoid pressure from the U.S., and extract concessions on bilateral relations.