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.

By Andrew Osborn and Mark Trevelyan MOSCOW (Reuters) -Russian Foreign Minister Sergei Lavrov said there is no agenda for a potential summit between Russian President Vladimir Putin and his Ukrainian counterpart Volodymyr Zelenskiy,