The officers , part of a special operation to suppress violence and rampant crime in Borno State , demanded Request that the young men comply with a law requiring motorcycle passengers to wear helmets .

Clashes between militants and the Nigeria Police Force erupted Process_start in Kano , Yobe and Borno soon after .

On the night of 14–15 April 2014 , 276 female students were kidnapped Kidnapping from the Government Secondary School in the town of Chibok in Borno State , Nigeria .

The 2015 Baga massacre Killing was a series of mass killings Killing carried out Military_operation by the Boko Haram terrorist Terrorism group in the north-eastern Nigerian town of Baga and its environs , in the state of Borno , between 3 January and 7 January 2015 .

The attacks Attack are said Statement to have resulted in Causation Boko Haram extending Cause_change_of_position_on_a_scale its control Control to over 70 % of Borno State , while its leader , Abubakar Shekau , claimed Statement responsibility for the massacre Killing in a video statement Statement , saying Statement that they `` were not much '' and that the group 's insurgency `` would not stop Preventing_or_letting '' .