Is the Ceasefire in Syria Holding?

A nationwide ceasefire between Syrian government forces and rebel groups has come into effect. The truce, brokered by Russia and Turkey, which will act as guarantors, began at midnight (22:00 GMT).

Russia has promised to respond to the expulsion of 35 of its diplomats from Washington, amid a bitter dispute over alleged Russian interference in the recent US presidential election. A spokesman for President Vladimir Putin said the Kremlin's reaction would cause the US "significant discomfort".

Mountain gorillas are endangered and they live mostly in Uganda, Rwanda and Democratic Republic of Congo. People who live near them are among the poorest in Africa, with limited access to basic social services. As the number of people has increased it's put them into conflict with the animals. We speak to Dr Gladys Kalema-Zikusoka, a wildlife vet who has made it her mission to prevent the spread of human disease to the animals.