N Korea nuclear seals 'removed'

Seals that prevented North Korea from using its main nuclear plant at Yongbyon have been removed, the UN's atomic watchdog says.

North Korean officials have also said that UN inspectors will have no further access to the Yongbyon plant.

The move comes amid a dispute over an international disarmament-for-aid deal for North Korea.

Pyongyang says Washington has not taken it off a list of state sponsors of terrorism, as previously promised.

North Korea has also told UN inspectors from the International Atomic Energy Agency (IAEA) that "they plan to introduce nuclear material to the reprocessing plant in one week's time", IAEA spokeswoman Melissa Fleming said.