Nigerian soldiers have arrested more than 400 people associated with the Boko Haram extremist group hiding on the islands of Lake Chad. Col. Onyema Nwachukwu said the two-week operation netted the largest number of arrests of Boko Haram fighters in recent months in northeast Nigeria. It included air and ground offensives targeting insurgents' locations. <br/><br/>Nwachukwu said the military arrested 167 Boko Haram fighters, 67 women and 173 children who were family members of the insurgents.<br/><br/>The women and children will be handed over to authorities of displacement camps after investigations. <br/><br/>Nwachukwu said another 57 insurgents were arrested during a separate operation in another part of the troubled region.