Nagasaki: 68 years after bomb

A woman offers prayers at Nagasaki Peace Park in Nagasaki, to mark the 68th anniversary of the world's second atomic bomb attack over the city, Aug. 9, 2013.

At 11:02 a.m. on Aug. 9, 1945, the explosion of an atomic bomb devastated Nagasaki, killing 70,000 people in the southern port city, three days after the world's first atomic attack in Hiroshima.

See more photos: Japan marks 68 years since Hiroshima

The atomic bombing of Nagasaki, Japan, August 1945.

An elderly woman prays in front of the Peace Statue at the Peace Memorial Park in Nagasaki, Japan, August 9, 2013 as the city marks the 68th anniversary of the bombing.

This 1945 photo taken by the Urakami river in Nagasaki shows a wrecked brick wall and a "Mitsubishi" steel factory after the bombing by the U.S. Air Force.

Doves fly during a ceremony to mark the 68th anniversary of the world's second atomic bomb attack, at Nagasaki Peace Park in Nagasaki, Aug. 9, 2013.

An aerial view of Nagasaki, after the bombing, Jun 26. 1946

Christians pray for victims of the 1945 atomic bombing during a mass at the Urakami Cathedral in Nagasaki, Aug. 9, 2013 as the city marks the 68th anniversary of the bombing.

Christians pray for victims of the 1945 atomic bombing during a mass at the Urakami Cathedral in Nagasaki, Aug. 9, 2013.

Japan's Prime Minister Shinzo Abe offers a wreath at Nagasaki Peace Park in Nagasaki, southern Japan during a ceremony to mark the 68th anniversary of the world's second atomic bomb attack, Aug. 9, 2013.

Young boys pray at the Peace Statue at the Peace Memorial Park in Nagasaki, Aug. 9, 2013.

Nagasaki Mayor Tomihisa Taue reads out a peace declaration at Nagasaki Peace Park during a ceremony to mark the 68th anniversary of the world's second atomic bomb attack, Aug. 9, 2013.

Japan's Prime Minister Shinzo Abe delivers a speech at Nagasaki Peace Park during a ceremony to mark the 68th anniversary of the world's second atomic bomb attack Aug. 9, 2013.

A relative of an atomic bomb victim prays at the Peace Statue at the Peace Memorial Park in Nagasaki, Aug. 9, 2013 as the city marks the 68th anniversary of the bombing.

Churchgoers pray during a mass in Nagasaki to mark the 68th anniversary of the world's second atomic bomb attack, Aug. 9, 2013.