Some 6.7 billion people would die of starvation in the event of a nuclear war and its aftermath, a study by Nature Food has shown.

Residents of Mayotte have spoken of "apocalyptic scenes" caused by the worst storm in 90 years to hit the French Indian Ocean territory. Cyclone Chido brought wind speeds of more than 225km/h (140mph) ...

It was clear to many that any nuclear war between the two sides would lead to destruction unlike anything before seen in human history - and no one was quite sure how to prepare for the aftermath.