A group campaigning for a total ban on nuclear weapons received its Nobel Peace Prize on Sunday, the recognition coming at a time of stalled disarmament talks and major global concern over North Korea's provocative weapons tests.

Members of the International Campaign to Abolish Nuclear Weapons, or ICAN, led by Executive Director Beatrice Fihn, received the prize at the Nobel ceremony in Oslo for efforts leading to the adoption in July of the U.N. treaty outlawing nuclear weapons.

The treaty "provides the pathway forward at a moment of great global crisis. It is a light in a dark time," Fihn said in a speech as she accepted the award with Setsuko Thurlow, 85, who witnessed the 1945 atomic bombing of Hiroshima at age 13 and now lives in Canada.