AFP – The UN Security Council on Wednesday agreed to roll out new measures to punish North Korea after Pyongyang announced it had carried out a successful hydrogen bomb test – a claim rejected by Washington With backing from China, Pyongyang's main ally, the 15-member council strongly condemned the test and said it would begin work on a new UN draft resolution that would contain . diplomats confirmed that talks were underway on strengthening several sets of sanctions that have been imposed on North Korea since its first tested an atomic device in 2006.