KYIV, Ukraine (AP) — U.S. President Donald Trump’s special envoy Keith Kellogg said in Kyiv on Monday that officials are “working very, very hard” on efforts to end the three-year war between Russia and Ukraine, as a lack of progress fuels doubts about whether a peace settlement could be on the horizon.

The White House said President Donald Trump is still working toward a bilateral meeting. "Nobody is ready to throw in the towel," one national security official said.

President Trump met with Ukrainian President Volodymyr Zelensky and European leaders in the quest for a path to end the war with Russia.