The Japanese city of Nagasaki has remembered those killed by the second atom bomb dropped by the US in 1945. A minute of silence was observed on Monday to commemorate the moment when the bomb wiped out most of the city. It was the second nuclear attack against civilians - just three days after the first target - Hiroshima - was devastated. As a result of the bombings, more than two hundred thousand people died either in the blasts, or due to radiation poisoning. Representatives from more than 30 countries gathered with survivors to highlight their message to the world - that humans and nuclear arsenals can't co-exist.
