LAGOS, Nigeria — A massive explosion ripped through a warehouse full of fireworks in Nigeria's largest city on Wednesday, sparking a fire that threatened surrounding city blocks and sending a plume of thick smoke high into the sky. At least one person died and 15 others were wounded, emergency officials said.

The blast occurred around 9 a.m. in the Jankara area of Lagos Island, a neighbourhood of narrow streets and tall cement buildings holding shops and housing people sometimes a dozen to a room in the megacity of Lagos. The force of the explosion echoed miles away and shook windows.

An Associated Press journalist saw members of the Nigerian Red Cross treating people with minor cuts and bruises a few blocks from the site. Later, rescuers pulled out a badly charred corpse from the still-smouldering structure

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