Ukraine's President Volodymyr Zelenskiy said his country's delegation was working in 'a completely constructive manner.'

U.S. officials are meeting separately with Ukrainian and Russian officials in hopes of hammering out a partial ceasefire in the 3-year war in Ukraine.

Relations between Kyiv and Washington are "back on track", the chief of staff to Ukraine's president told Reuters, after a fraught Oval Office encounter last month between the U.S. and Ukrainian leaders.

Relations between Kyiv and Washington are "back on track", the chief of staff to Ukraine's president told Reuters, after a fraught Oval Office encounter last month between the U.S. and Ukrainian leaders.

The White House said Tuesday that both Ukraine and Russia have agreed to stop using force in the Black Sea – a deal in principle that the Kremlin says comes with several conditions before it can be implemented.