Such violence over the years has been blamed on Boko Haram, whose name means "Western education is sacrilege." According to Human Rights Watch, the group has killed more than 2,800 people in an escalating campaign to impose strict Islamic law on largely Muslim northern Nigeria.
MORE: http://www.cnn.com/2013/05/14/world/africa/nigeria-violence/index.html?hpt=iaf_c1
See also...
Scores of police officers killed in central Nigeria
http://www.cnn.com/2013/05/09/world/africa/nigeria-violence/index.html?hpt=iaf_c2
