Twin cathedral bells rang in unison in Japan's Nagasaki for the first time since the atomic bombing of the city 80 years ago, commemorating the moment the atrocity took place.
On 9 August 1945, at 11.02am, three days after a nuclear attack on Hiroshima, the United States dropped an atomic bomb on Nagasaki.
After heavy downpours this morning, the rain stopped shortly before a moment of silence and ceremony in which Nagasaki mayor Shiro Suzuki urged the world to "stop armed conflicts immediately".
"Eighty years have passed, and who could have imagined that the world would become like this?
"A crisis that could threaten the survival of humanity, such as a nuclear war, is looming over each and every one of us living on this planet."
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About 74,000 people were killed in the southwestern port city, on top of the 140,000 killed in Hiroshima.
Days later, on 15 August 1945, Japan surrendered, marking the end of World War II.
Historians have debated whether the bombings ultimately saved lives by bringing an end to the conflict and averting a ground invasion.
However, those calculations meant little to survivors, many of whom battled decades of physical and psychological trauma, as well as the stigma that often came with being a 'hibakusha'.
The two bells of Nagasaki's Immaculate Conception Cathedral rang together for the first time since 1945.
The imposing red-brick cathedral, with its twin bell towers atop a hill, was rebuilt in 1959 after it was almost completely destroyed in the monstrous explosion just a few hundred metres away.
Only one of its two bells was recovered from the rubble, leaving the northern tower silent.
With funds from US churchgoers, a new bell was constructed and restored to the tower, and chimed this morning at the exact moment the bomb was dropped.
Fr Kenichi Yamamura said the bell's restoration "shows the greatness of humanity".
Nearly 100 countries were set to participate in this year's commemorations, including Russia, which has not been invited since its 2022 invasion of Ukraine.
Israel, whose ambassador was not invited last year over the war in Gaza, was in attendance.
This year, "we wanted participants to come and witness directly the reality of the catastrophe that a nuclear weapon can cause", a Nagasaki official said last week.