A bag of home-made bombs has exploded in northern Nigeria. The explosives were found in an apparent Boko Haram camp by vigilante groups working with government forces. Our correspondent says it was left as a trap. Also, end of school exams take place under a heavy police presence in Burundi, with students' ability to concentrate sorely tested. And Cameroon keeps African hopes alive in the Women's World Cup as the Indomitable Lionesses advance to the knockout stage.