Grain markets steadied on Tuesday, with farmers and traders on alert for Russia’s next moves as ships continue to move through Ukraine’s safe-passage corridor despite repeated warnings from Moscow.

Three more crop vessels departed Ukraine on Tuesday, the United Nations said, and the 12 ships that left yesterday have cleared the corridor safely. No new ships headed for Ukraine through the corridor. Wheat futures fell 0.9% in Chicago after surging 6.4% on Monday, and corn was little changed.