In pictures: Chad refugee camp

Hawa said that despite the small riot in the camp, she felt things were “fine” at the moment.

But she added: “Our situation is horrible and I worry about the future.”

Stuck vehicles in a wadi, or river bed, on the road between Abeche town and Bredjing refugee camp underline the challenge for aid agencies of getting supplies through to the refugees.

As the rainy season arrives, many roads become impassable.