The incident which affected three buildings located at Okoya/Ojogiwa, Lagos Island, Lagos, occurred at about 8:00am.
It was gathered that trouble started when a locked-up shop under one of the three buildings stocked with fireworks popularly called 'bangers' suddenly exploded and went up in flames.
As a result of the explosion, it was learnt that the building which had d shop under it and two others adjoining collapsed.
Residents of the three buildings who were still celebrating the Christmas festivity mood but, were still on beds to witness the boxing day, were affected during the explosions.
6 persons, it was said, were feared dead and a dozen others injured.
A score other residents were said to be currently trapped in d debris of the collapsed three buildings.
As at press time, officials of the Lagos State Emergency Management Agency (LASEMA), fire service, police, Nigerian Security Civil and Defence Corps (NSCDC) and others had visited the scene for rescue operations.