In 60 seconds: Crisis in Central African Republic
1 May 2014 Last updated at 16:57 BST
The deteriorating situation in the Central African Republic (CAR) has forced around a quarter of the country's 4.6 million residents from their homes.
The crisis has led to "religious cleansing" human rights groups say, with Muslims fleeing southern areas.
Amid reports of horrendous attacks, including the beheading of children, BBC News explains the background to the crisis - in 60 seconds.
Video produced by Michael Hirst, with some archive footage from Amnesty International and agencies