More than two million people are at risk of starvation because of failed rains.

Millions are at risk of starvation or disease as the fighting has prevented supplies of medicine, food and fresh water.

The charity said that it wanted to raise 20 million to help the 11 million people estimated to be at risk of starvation in the region.

The clashes risk exacerbating a humanitarian crisis that has left millions at risk of starvation.

More than 22 million people out of a population of 29 million need food aid and more than eight million are at risk of starvation.

Aid agencies say that five million people, almost half the population, now face starvation.

Now there are estimates that more than 1,000 face starvation or a return to forest labour in dire conditions.

More than 1m people face starvation.

About 300,000 civilians live in the rebel-held areas and there are fears that they could face starvation.

Aid agencies say that insecurity has hampered efforts to help the 1.7 million people facing starvation.

The experts said that the higher fatality rate out of hours was due to 'a significant excess risk' - 70 per cent higher - of oxygen starvation.

An increased level of carbon dioxide in the blood coupled with oxygen starvation could also play a part.

Freediving, inevitably, has its dangers: the biggest being blackout from oxygen starvation.

Diving to such depths puts so much pressure on the lungs and muscles that competitors sometimes black out as a result of hypoxia, or oxygen starvation.

The hospital says a 'random post-natal' collapse probably caused oxygen starvation.

Within its walls a few hundred fighters and a few hundred thousand civilians are now not only under siege but under threat of starvation.

Hundreds of millions will face the threat of starvation.

We spent the morning wandering empty alleys and climbing whitewashed steps, torn between the threat of starvation and the fear of barging into someone's living room, demanding tinned tuna.

There was, for the most part, an orderly return of soldiers back into civilian life, while the threat of starvation was combated.

Subsistence farmers balance the threat of starvation with that of floods.