At least 15 people were killed and 40 wounded after a mosque collapsed in Somalia's capital, Modgadishu, a police spokesman told dpa.
The mosque, which was being renovated, collapsed after Friday prayers, residents and witnesses have said.
At least 200 people are believed to have been inside it at the time.
Rescuers searched the rubble for survivors in the neighbourhood of Karasbaley in Mogadishu's Hodan district throughout the night, police spokesman Mohamed Dahir told dpa on Saturday.
"There was a major rescue search throughout last night where at least 15 bodies were recovered from under rubble," he said.
The cause of the collapse remains unclear, but local government official Ahmed Nur Abdi said it may have been caused by the ongoing repair work inside the building.
Another police officer, who asked to remain anonymous, told dpa that an engineer in charge of the renovation work has been taken in for questioning.