South Sudan famine – more aid promised
The UK has pledged more funding to ease the humanitarian crisis in South Sudan.
Nigeria: a disaster being revealed
It is the richest and most populous country in Africa, but parts of Nigeria are lurching towards a man-made famine. As the Nigerian army drives out the Islamists of Boko Haram from the north-east of the country, it is uncovering the scale of destruction they have left behind.