Nigeria security chiefs report progress in rescuing kidnapped studentsbr br A total of 303 schoolchildren and 12 teachers were abducted by gunmen during an attack on St. Mary’s School, a Catholic institution in north-central Nigeria’s Niger state, the Christian Association of Nigeria said on Saturday, updating an earlier tally of 215 schoolchildrenbr br READ MORE : br Subscribe on our Dailymotion channel and receive all the latest news from the continent. br br Africanews is available in English and French. br Website : www.africanews.