The agreement announced after parallel sets of talks in Riyadh would be the first significant step toward the full cease-fire the Trump Administration had been pushing, but it still would fall short.

Russia and Ukraine have agreed to a naval ceasefire in the Black Sea in separate deals with the US, after two days of peace talks in Saudi Arabia. Washington said all parties would continue working toward a "durable and lasting peace" in statements announcing the agreements, which would reopen an important trade route.