Friday, 7 October 2005, 20:52 GMT 21:52 UK
UN nuclear agency director and Nobel Peace Prize winner Mohamed ElBaradei has said the award will give him and his organisation a "shot in the arm".
Mr ElBaradei said the peace prize would act as a spur to tackle nuclear crises in Iran and North Korea.
The award was given jointly to Mr ElBaradei and the International Atomic Energy Agency (IAEA), which he heads.
He was congratulated by US Secretary of State Condoleezza Rice, whose country opposed his re-appointment.
Ms Rice said the Bush administration was committed to working with the IAEA to prevent the spread of nuclear weapons technology.
Washington has previously criticised Mr ElBaradei for being too soft on Iran, and opposed him when he stood for a third term as head of the agency in September. The complaint was later withdrawn.
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