About 355,000 refugees from Burundi and DR Congo live in western Tanzania, where they are barred from working or setting foot outside their makeshift camps. The conditions are "miserable," as Prosper Kwigize reports.

In Nduta refugee camp, a shortage of funds sees some school classes held under trees.“When it rains everything gets wet,” says Irahoze, 14, who fled Burundi and now studies beneath the trees in Tanzania’s Nduta refugee camp. “When it’s windy, the branches fall and when the sun is strong it’s too hot...