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.

President Donald Trump said Friday he will give Russian President Vladimir Putin “a couple of weeks,” further extending a deadline for potential consequences against Moscow after urging the Russian leader and Ukrainian President Volodymyr Zelensky to meet.