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.

WASHINGTON/KYIV, Aug 22 (Reuters) - U.S. President Donald Trump renewed a threat to impose sanctions on Russia on Friday if there is no progress toward a peaceful settlement in Ukraine in two weeks, showing frustration at Moscow a week after his meeting with Russian President Vladimir Putin in Alaska.

U.S. President Donald Trump’s special envoy Keith Kellogg says officials are “working very, very hard” on efforts to end the three-year war between Russia and Ukraine.