Nigerian militia releases 894 children

A Nigerian pro-government militia, the Civilian Joint Task Force, has released 894 children it recruited for the fight against Boko Haram Islamist militants in the north-eastern city of Maiduguri.

Also in the programme: how India's political parties are trying to woo women voters; and a new research centre at Cambridge University that will develop new ways to fix the Earth's climate.

(Photo: Children freed by a Nigeria militia at a handover ceremony in Maiduguri. Credit: Reuters)