UN Security Council has adopted a resolution to reinforce the objectives of a major treaty banning nuclear test. The 15-member body adopted the resolution Friday and called upon all countries to refrain from conducting any nuclear weapon test explosion. <br/><br/>It pushed for early enforcement of the Comprehensive Nuclear Test Ban Treaty, CTBT. This is a multilateral treaty by which countries agree to ban all nuclear explosions. CTBT was adopted at the UN General Assembly in 1996, but has yet to take effect.<br/><br/>Friday's resolution came after North Korea conducted its fifth nuclear test earlier this month. The UN Security Council has called the test a flagrant disregard of the nuclear non-proliferation regime.