About 50 people are feared dead after the roof of the building of the Reigners Bible Church in Uyo, Akwa Ibom state, collapsed during a church service.
This was a temporary structure that was put pending the completion of the church's main structure.
The Akwa Ibom state Governor, Udom Emmanuel, was in the church when the roof collapsed but he narrowly escaped and is unhurt.
The Governor said there would be an investigation to ascertain whether the temporary building was put up according to the building safety standards.
The President has expressed "deep sorrow" over the incident.