Authorities said 37 people have so far been rescued and eight were found dead.
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What we know so far:
- Up to 100 children could be trapped in the wreckage
- The children had been attending an "illegal school" in a residencial building
- The building was located in the densely-populated Ita-faji area of Lagos
'Parents are anxiously awaiting'DW's West Africa correspondent Fanny Facsar reported that families were fearful over the fate of the children.
"Parents are anxiously awaiting news about what has happened to their children," said Facsar.
Building collapses commonNigeria has witnessed scores of deaths over collapsed buildings, especially those built illegally.
In 2015, more than 110 people were killed when a six-story building collapsed during a church service. Two years later, another church collapsed in Uyo, killing 60 people.
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cw,ls/sms (AFP, Reuters)