By Pavel Polityuk and Pesha Magid KYIV/RIYADH (Reuters) -Ukrainian and U.S. officials are expected to meet in Saudi Arabia late on Sunday to discuss a possible partial ceasefire between Ukraine and Russia,

A US delegation will seek progress toward a Black Sea ceasefire and a broader cessation of violence in the war in Ukraine when it meets for talks with Russian officials on Monday, after discussions

US and Ukrainian officials concluded 'productive and focused' talks in Saudi Arabia on Sunday over efforts to de-escalate the war with Russia, as Moscow prepared for its own separate discussions with American negotiators.