Ceremonies are to be staged around the world to mark one year since more than 200 girls were abducted by Nigerian militant Islamist group Boko Haram. A procession will be held in the capital, Abuja, with 219 girls taking part to represent each missing girl. Similar marches are planned worldwide, including in London and Washington.
On Tuesday, Amnesty International said 2,000 girls and women had been abducted since the start of last year, becoming cooks, sex slaves and fighters. The abduction of the girls in Chibok in north-eastern Nigeria on 14 April 2014 sparked global outrage, with nations such as the US and China promising to help find them. But to date, none have been traced.