Nigeria, Sept. 21 -- At exactly 5:20am, Abdulfatai Abdulraheem was lying on his bed, preparing to get up for the Subhi prayer, when he heard a strange sound.

"Gboooooo," It sounded like something had suddenly fallen heavily to the ground.

For Abdulraheem, a civil servant and aluminium fabricator living next door, the sound immediately raised an alarm.

His mind went to the house beside his. He rushed out and tried to open the entrance door but it was already open.

Getting inside, what he saw, got him shocked. Dust from the collapsed building had spread through the house, covering the area with rubble. Then he heard someone shouting for help.

It was the elder brother of the family who lived in the boys' quarters. His brother, Muhammad...