The UN nuclear watchdog, the International Atomic Energy Agency, has expressed concerns that materials and equipment from Saddam Hussein's former nuclear programme in Iraq have vanished without trace.
In a letter to the Security Council, the IAEA said it was concerned about what it called the widespread and apparently systematic dismantling of entire buildings that contained specialised equipment.
The agency's director, Mohammed al-Baradei, said such equipment could potentially help a government or a terrorist group to make nuclear bombs.
