European Union’s foreign policy chief said Friday that the possibility of Ukraine ceding land to Russia as part of a peace deal to end their three-year war is “a trap” set by Russian President Vladimir Putin.

U.S. President Donald Trump has interrupted his talks in Washington with European leaders to call Russian President Vladimir Putin, an EU diplomat told Reuters on Monday.

Washington’s push to negotiate an end to the war has raised concerns the Trump administration will make concessions to Moscow that Kyiv finds unacceptable.