There was pandemonium at Itafaji area of Lagos Island as a three-storey building housing a school collapsed all of a sudden.
Many pupils were trapped as efforts to rescue them are being intensified.
According to the Police many of those affected were pupils.
It was gathered that the affected school was located on the last floor of the three-storey building on Lagos Island.
Many injured pupils were rushed to the hospital as well as those feared dead, said a source at the Island Maternity Hospital.
Visibly on ground to facilitate the rescue mission are officials of the Lagos State Emergency Management Agency (LASEMA), the Rapid Respond Squad (RRS) and other rescue agencies are on ground to rescue trapped victims.
One of the pupils rushed to Massey Children Hospital was confirmed died by an anonymous official.
Speaking on the incidence, Police Public Relations Officer, PPRO, Lagos State, DSP Bala Elkana, said the casualty figure could not be ascertained yet.
He further stressed that said rescue operation was on ongoing and that the rescue department in the police had been dispatched to help in the rescue of victims.