Nagasaki is marking the U.S. atomic attack on the southern Japanese city 80 years ago and survivors are working to make their hometown the last place on earth hit by the bomb.

The mayor of Nagasaki has appealed for an end to the wars raging in the world on the 80th anniversary of the US atom bomb attack which destroyed the Japanese city. "Conflicts around the world are intensifying in a vicious cycle of confrontation and fragmentation," Shiro Suzuki said in a Peace Declaration at a solemn ceremony to mark the event.