The exact death toll from the atomic bombings of Hiroshima and Nagasaki is unknown, but it ranges from 129,000 to 226,000.
Hiroshima:
Between 70,000 and 80,000 people died instantly as a result of the blast.
Another 60,000 died over the next few months from radiation sickness and other effects of radiation exposure.
The total death toll by the end of 1945 is estimated at 90,000 to 166,000.
Nagasaki:
39,000 to 40,000 people died instantly.
Another 30,000 died over the following months from radiation sickness.
The total death toll by the end of 1945 is 60,000-80,000.
It should be noted that these figures are approximate and the exact number of deaths will never be known.
In addition, many of those who survived suffered long-term effects of radiation exposure such as cancer, leukaemia and other health problems.
The atomic bombings of Hiroshima and Nagasaki remain among the most tragic events in human history.