Human rights organisation claims Nigerian army killed 600 people after insurgent barrack attack.
Fulani herdsmen raid villages in Kaduna state, leaving scores dead and many homeless.
Suspected Islamist militants shoot and burn sleeping boys in Nigeria boarding school dormitory.
Islamist insurgents create mayhem and also attack Catholic church.
Nigeria's Islamist rebel group Boko Haram had claimed responsibility for the abduction.
Several people killed in fresh Islamist offensive, according to reports
French engineer suffering from heart condition flees from Boko Haram's spinoff Ansaru militant group prison.
Nigerian troops kill 29 Boko Haram militants as part of targeted two-day raid.
French priest who helped Christians evade Islamist group Boko Haram kidnapped in northern Cameroon.
Gunmen in Nigeria's northeastern state of Borno kill at least 30 people on their way back from a wedding.
Ground and aerial assault destroy Islamist camps in northeast Borno villages of Galangi and Lawanti.
Islamist extremists' attack on College of Agriculture in Yobe state kills 78 students.
Provinces bordering Cameroon, Chad and Niger focus of offensive.
More than 200 Nigerian Islamists storm north-eastern town of Bama freeing 105 prisoners and killing 55 people.
Death toll rises to 27 in the latest incidents of clashes between the security forces and Islamic militants in the northern parts of Nigeria.
A bomb blast killed at least five people on Easter Sunday in the city of Kaduna in northern Nigeria.
British engineer Chris McManus and Italian national Franco Lamolinara killed during rescue operation by joint forces of Nigeria and Britain.