The United Nations Security Council vote on the United States-China draft resolution on North Korea is rescheduled to 10:00 a.m. EST Wednesday. Russia requests more time to review the text.
Russia stops three Ukrainian Navy vessels from passing under the Kerch Strait Bridge by blocking it with a cargo ship. Russia claims they violated her territorial waters and ignored warnings. The navy vessels and their crews are seized after shots were fired. Russia says three Ukrainians were wounded. According to Ukraine, six of their sailors are wounded. Ukraine denies their ships did anything wrong.
Iraqi Defense Minister Khaled al-Obaidi updates the death toll from Friday's friendly fire airstrike near Fallujah to 10, one officer and nine soldiers. U.S. Defense Secretary Ashton B. Carter says it appears an American jet conducted the strike. Carter called Iraqi Prime Minister Haider al-Abadi to express condolences.
Ukrainian President Petro Poroshenko warns of a threat to a planned ceasefire tonight from heavy fighting today and accuses Russia of "significantly increasing" its offensive. In a live interview he ordered all Ukrainian forces to cease fire after midnight.
Syrian uprising: The United Nations Human Rights Council votes to condemn the massacre carried out by Syrian forces in the town of Houla on May 25, despite Russia, China and Cuba voting against the resolution.
President of the United States Barack Obama opening the biggest international meeting hosted by the US since 1945, greets leaders from nearly 50 countries. World leaders at the summit hear dire warnings of the danger of nuclear material falling into the wrong hands.