Boko Haram insurgents waged gunbattles with security forces in the remote northeastern city of Damaturu, near the radical sect's heartland, throughout Tuesday, police chief for the surrounding Yobe state Patrick Egbuniwe told Reuters. He said 40 people were killed, 34 insurgents and 6 security forces.

In separate clashes between Muslim and Christian residents of the northern city of Kaduna on Tuesday, triggered by suspected Islamist bombings of three churches two days earlier, at least 40 people were killed and 62 wounded, according to figures from local Nigeria Red Cross official Awwal Sani. (Reuters)