A five-storey building collapsed on Tuesday, after its owners had added floors despite lacking the permission of the authorities, in the Nigerian megacity of Lagos.
The building site is located in the popular Lekki district on the Lagos peninsula.
Officials have confirmed the death toll was initially four, but a rescue team pulled out more bodies from the rubble by Wednesday afternoon. They said thirteen people were rescued.
"After they [the owners] finished building the house, rain fell and the house shifted a bit. They put iron in front of the house [but] the iron couldn't hold the house," said Victor Suru, a brick layer working on the site.
"They left it like that and continued building."
Lagos state government told the management of the building to report to the police.
"It has also been discovered that in a brazen act of defiance and impunity, the owners of the building ... criminally unsealed the property and continued building beyond the approved floors," the state government said in a statement.