The White House has said Russia and Ukraine have agreed to ensure safe passage for commercial shipping in the Black Sea and stop military strikes.
Washington released separate statements after American officials met representatives from both countries in Saudi Arabia.
Ukraine agrees to stop military force in the Black Sea, but says any movement of Russian naval vessels would be a violation of the agreement.
Meanwhile, Russia says certain sanctions on banks, insurers, and food exporters must be lifted before the ceasefire comes into force.
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