A mosque under refurbishment has collapsed in Somalia, killing at least 15 people and injuring 40.
It happened during Friday prayers in the mosque in the capital Mogadishu. Details emerged on Saturday.
Hundreds of people are reported to have been inside the building when it collapsed and some are still believed to be trapped under the rubble.
An engineer on the refurbishment project has been arrested on suspicion of negligence, local media report.
Heavy rains have fallen on the area over the past few days.
The Somali government controls Mogadishu and other cities, but militants from the al-Qaeda-linked group al-Shabab dominate many rural areas.
More than 22,000 African Union soldiers and police are deployed in the country to protect the government.