It has been 70 years since the US dropped atomic bombs in the Japanese cities Hiroshima and Nagasaki in the final stage of World War II.

Boeing B-29 Superfortress Enola Gay dropped the uranium gun-type atomic bomb 'Little Boy' on Hiroshima on 6 August 1945, destroying everything in five square miles.

Notable Quotes to be Shared on 70th Anniversary of Atomic Bombing

The second atomic weapon, a plutonium implosion-type bomb 'Fat Man' was dropped in Nagasaki three days later on 9 August by American B-29 bomber Bockscar. It exploded 1,650 feet above the city around 11.02 am local time, killing more than 40, 000 people instantly.

The two atomic bombings killed more than 2,46,000 people. Later, many others also died due to burns, radiation and other illnesses in the following months. 

However, by 15 August, Japan announced its surrender to the Allies and ended the World War by signing the instrument of surrender on 2 September.

Check out more photos of Hiroshima Nagasaki nuclear attack below:

Hiroshima Nagasaki: Then and now in Pictures

Nagasaki Nuclear Attack
The Bock's car and its crew, who dropped the 'Fat Man' atomic bomb on Nagasaki on 9 August, 1945Wikimedia Commons/ Cfpresley / U.S. Air Force
Nagasaki Nuclear Attack
A temple destroyed after the Nuclear attack on NagasakiWikimedia Commons /Cpl. Lynn P. Walker, Jr/United States Marine Corps
Nagasaki Nuclear Attack
An aerial view of the Nagasaki taken before the atomic bomb was dropped and, in August 1945 after the bombing, show the extent of the devastation on the city.Wikimedia Commons /Fastfission
Nagasaki Nuclear Attack
Undated handout photo courtesy of the U.S. National Archives shows the aftermath of the atomic bomb which was dropped on Nagasaki on August 9,1945. A Roman Catholic cathedral can be seen on the hill in the background.REUTERS/U.S. National Archives and Records Administration/Handout

Watch the archive footage of atomic bombings that shook the world.