The attacks were reported shortly before Cameroon's president Paul Biya left for Nigeria to discuss ways of ending Boko Haram violence with his Nigerian counterpart.

Authorities in northern Cameroon say a local self-defence group used a poisoned arrow to kill a woman with explosives strapped to her body.

Midjiyawa Bakary, the governor of Cameroon's Far North region, said that the 40-year-old woman had crossed over from neighbouring Nigeria along with a 14-year-old girl.

Local residents shot the poisoned arrow at the woman after she failed to stop as demanded. The girl also died when she detonated her own explosives.

Residents near the northern town of Mora said at least five other suicide bombers have died in the last several days.

The attacks were reported shortly before Cameroon's president Paul Biya left for Nigeria to discuss ways of ending Boko Haram violence with his Nigerian counterpart.

Meanwhile, the Nigerian Army said that no fewer than 11, 595 civilians held at various enclaves by Boko Haram had been rescued. This came as troops intensified efforts to clear and mop up all insurgent activities in the North East.

The army said the rescue operations were carried out within the past six weeks, noting that women and young children who had been caught in the Boko Haram crossfire finally regained their freedom and temporarily settled in camps for internally displaced persons.?