Rescue efforts have been called off after a day of trying to free children from the rubble of a school that collapsed in Nigeria's commercial capital Lagos.
At least 11 people have died so far.
The building was condemned as unsafe in 2017 and marked for demolition.
Given this, a key question being asked about the tragedy is: Why were the children in the building?
Engineer Felicia Nnenna Agubata explained to BBC Newsday that the reason why people stay in buildings marked for demolition is because building inspectors are not backed up by security officers who can enforce evacuations.
She also argued that, at the moment, the only people held to account are engineers.
Quote Message: Only engineers, when they are culpable, they are the only ones punished because their licenses are withdrawn. But... it's not just engineers that are concerned. We have the builders, we have the architects, we have the surveyors, we have the town planners, everybody is involved."
Only engineers, when they are culpable, they are the only ones punished because their licenses are withdrawn. But... it's not just engineers that are concerned. We have the builders, we have the architects, we have the surveyors, we have the town planners, everybody is involved."