The United Nations Security Council has unanimously approved a resolution designed to increase efforts to eventually rid the world of nuclear weapons.
U.S. President Barack Obama presided over a special session of the Security Council Thursday.
The leaders of all 15 Security Council member nations voted for the U.S.-drafted resolution.
It sets a framework for dealing with nuclear arms reduction, disarmament and the threat of nuclear terrorism.
It also calls for states to set up specific goals on nuclear arms reduction and disarmament, bolsters the Nuclear Non-proliferation Treaty, and calls for greater security of nuclear weapons materials, to prevent them from falling into the hands of terrorists.
Mr. Obama warned the detonation of a single nuclear weapon in a major world city would cause global economic damage and insecurity, in addition to killing hundreds of thousands of people.