Suicide bomber kills six people in Kano ; Boko Haram suspected . Chibok is among at least three towns seized by fighters . ` The state government enlisted the help of the vigilantes and hunters to combat Boko Haram and it is paying off , '' Bobi said.‎ . - May 22 -- A suicide car bomb explodes outside a police station in the Nigerian city of Kano, killing one person and injuring five others. The militant Islamists `` are all over the town firing heavy guns , '' one resident says .
Suicide bomber kills six people in Kano ; Boko Haram suspected . Chibok is among at least three towns seized by fighters . - May 22 -- A suicide car bomb explodes outside a police station in the Nigerian city of Kano, killing one person and injuring five others. The militant Islamists `` are all over the town firing heavy guns , '' one resident says .