"All I could hear were ceaseless gunshots, explosions, screams from people and chants of 'Allahu Akbar' from the Boko Haram gunmen."

"I remained in my hiding place until Tuesday evening. Every night when it was dark, I would furtively scale the fence into my house to quickly eat garri and drink water and go back to my hideout.... Some of the Boko Haram gunmen camped outside the Baga main market just 700 metres from my hideout... At night I could see lights from the power generator they ran. I could also hear their cheering and laughter.... "

The survivor Yanaye Grema tells his story.

(What is garri? "To make garri, cassava tubers are peeled, washed and grated or crushed to produce a mash. The mash is placed in a porous bag and allowed to ferment for one or two days, while weights are placed on the bag to press the water out. It is then sieved (or sifted) and roasted by heating in a bowl. The resulting dry granular garri can be stored for long periods.")