Sixteen people have so far been rescued from a three-storey building under construction on Abimbola Street, Ilasa, in Lagos State.
The building, which is located at 2/4, Richard Abimbola, Off Limca Road, Ire Adri Estate, fell on the adjoining buildings to it, trapping many workers in the wreckage.
The emergency officials have cordoned the building off and battling to rescue more victims still trapped.
It is unclear how many people are still trapped in the building.
The injured have been taken to the Ilasa General Hospital while rescue operations is ongoing.