It's not clear how many casualties there are at St Paul Catholic Church in the Southern Delta state.
Sources in the community told the Nigerian paper Vanguard that the incident happened during the morning service.
Another church building collapse! While we may continue to send condolences and prayers, we all must realize these are symptoms of poor governance, corruptions and disregard for professionalism. Prayers will NOT solve this for us.
— OpenedMind (@PenEffect) September 2, 2018
The West African country's former Vice President tweeted that his "thoughts and prayers are with the families and friends of worshippers caught up in the collapse" of the church.
Structural failures have caused church collapses in the country numerous times.
In 2016, at least 160 worshippers were killed when the roof of a church in the city of Uyo, in Akwa Ibom state collapsed.
In 2014, 116 people died when a multi-story guesthouse of the Synagogue Church of All Nations collapsed in Lagos, Nigeria's largest city.
Some users responded to the news by sharing their frustration of unsafe buildings.
It is not yet clear what caused the Catholic church to collapse.
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