A three-storeyed building on Wednesday collapsed at the Itafaji area of Lagos Island.
Many children are reportedly dead while others are trapped as at the time this report was filed.
According to Channels Tv, a primary school is said to be located on the top floor of the building with pupils feared killed and others trapped.
The structure is reported to be a residential building with several apartments.
Emergency and rescue workers are currently at the scene of the incident.