UN agency issues N Korea warning

North Korea could restart its nuclear facilities within months, the head of the UN nuclear watchdog has said.Pyongyang vowed last week  to restart its nuclear  programme and pull out of six-nation talks on nuclear disarmament in response to a UN Security Council statement condemning its rocket launch earlier this month.Mohamed El-Baradei, the head of the International Atomic Energy Agency (IAEA), said on Monday that the resumption of nuclear the nuclear programme "could be a question of months".North Korea told the IAEA last week that it had stopped all co-operation with United Nations nuclear monitors and asked them to leave the country.US weapons experts working on disabling the Yongbyon nuclear plant have also been expelled.The UN Security Council statement said the North's rocket launch was violation of a resolution banning Pyongyang from conducting missile-related activities.Pyongyang insists the launch placed a satellite into orbit, and defended what it said was its sovereign right to a space programme.But the US military says no satellite has been detected after the rocket's upper stage and its payload apparently crashed into the Pacific. It says the launch was a cover for a long-range ballistic missile test.