A pregnant woman, the proprietor of a Nursery/Primary School and 19 others, including no fewer than 12 pupils, died in the collapsed building at Massey Street, Itafaji on Lagos Island, Lagos State on Wednesday, witnesses and hospital sources said.
He said the agency would collaborate with LASEMA to provide relief materials for the victims as rescue operations come to an end.
"We just heard "wham" and the three-story building was reduced to rubble", Fashanu Kudos, a man who lives in a house overlooking the collapsed building told The New York Times.
"All we are interested in now is to save more lives and also see how those that have been rescued are put in proper place and proper care", he said.
Adeniyi Afolabi, a shopworker who lived nearby, gave the name of the school as the Ohen Nursery and Primary, and said there were 144 pupils in attendance on Wednesday. Police, ambulances, Red Cross workers, fire trucks and a fork lift were on the scene.
One bereaved relative, Bose Adeshida, said she had two nieces, aged 11 and 4, who attended the school.
Lagos, which has a population of 20 million people, is made up of a collection of islands.
In September 2014, 116 people died - 84 of them South Africans - when a six-storey guesthouse collapsed at the Lagos church complex of the celebrity televangelist TB Joshua.
Scores of children are feared trapped after the school collapsed in Nigeria
Building collapses are not uncommon in the country where the administration is lenient in its enforcement of rules.
"LASBCA and other building regulatory authorities alone can not properly monitor to detect when buildings are defective or when illegal constructions are going on, without the support of the residents". Engineers responsible for the construction are now on trial for manslaughter.
Obiora Manafa with the Standards Organization of Nigeria told reporters that they would analyse samples of the collapsed building's concrete and steel bars "to ascertain the quality. and know whether they complied with the national building code". In 2016, a church roof caved in on a crowded congregation in Uyo, a city in southern Nigeria, killing at least 160 people.
"A lot the buildings here are not safe".
He expressed sadness over the incident, stressing that the marked building for demolition would be pulled down.
Lagos state governor, Akinwunmi Ambode, says the school that collapsed in the Ilafaji area of the state yesterday March 13th, was operating illegally.
He added that there are many similar buildings in the Lagos Island area that are also at risk.
According to him, government's laid down regulations on building construction and maintenance must be faithfully respected and enforced. "All defective structures should be pulled down and the culprits brought to book to serve as a deterrent to others".
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