Nihon Hidankyo, a Japanese group of atomic bomb survivors, has won the 2024 Nobel Peace Prize.
Nobel Committee Chair Joergen Watne Frydnes praised the "extraordinary efforts" of the organisation whose campaign has "contributed greatly to the establishment of the nuclear taboo".
The winner was announced at a ceremony in Oslo on Friday, where Mr Frydnes warned: "This taboo against the use of nuclear weapons is under pressure."
The Norwegian Nobel Committee praised the group's use of witness testimony to ensure nuclear weapons must never be used again.
The Norwegian Nobel Institute said 286 candidates had been nominated for this year's peace prize, a number comprising 197 individuals and 89 organisations.
Nominations can be made by people in positions of significant authority, including members of national assemblies, governments and international courts of law.
Iranian human rights activist Narges Mohammadi won the prize in 2023, when she was honoured for her work fighting the oppression of women in Iran.
Source: BBC