Russian Foreign Minister Sergei Lavrov held calls on Saturday with his Turkish and Hungarian counterparts, the Russian foreign ministry said, hours after a summit between the U.S. and Russian presidents yielded no deal on ending the war in Ukraine.

The president of Ukraine and his European allies are to visit the White House on Monday, after President Trump backed Russia’s plan to end the war.

Trump is meeting face-to-face with President Putin in Alaska for a summit that could determine the trajectory of the war in Ukraine.