Pope Francis delivers his speech with his cape blown by wind, at the Martyrs’ Monument at Nishizaka Hill Sunday, Nov. 24, 2019, in Nagasaki, Japan. (AP Photo/Gregorio Borgia)

Tokyo – Pope Francis on Sunday paid tribute to the victims of US nuclear bomb attacks on two Japanese cities at the close of World War II and described the use of atomic energy for purposes of war as a “crime.”

After arriving in Hiroshima in the evening, Francis laid flowers at the arch-shaped Hiroshima Peace Memorial near ground zero and lit a candle to pray for peace.

The 82-year-old pope listened to the accounts of two atomic bomb survivors before delivering his speech.

“I felt a duty to come here as a pilgrim of peace,” said the pope, who kicked off a four-day tour to Japan on Saturday.

The atomic bombing on Hiroshima on August 6, 1945, killed tens of thousands of residents instantly, and by the end of the year, some 140,000 in total had died.