Church bells across Greece tolled mourning on Friday as the first Islamic prayers in nine decades were held at Hagia Sophia in Turkey, marking the monument's conversion into a mosque.

Greek church bells toll for Hagia Sophia, PM calls Turkey a 'troublemaker'

After 86 years of operating as a museum, Istanbul's Hagia Sophia reopens as a mosque today for Friday prayers. Watch report.

First Friday prayers after reconversion of Hagia Sophia

The first prayers at Istanbul’s Hagia Sophia, a 1,500-year-old UNESCO World Heritage site which has now been converted into a mosque, will take place on July 24.

First prayers in Hagia Sophia after conversion on July 24

President Recep Tayyip Erdogan on Saturday rejected worldwide condemnation over Turkey's decision to convert the Byzantine-era monument Hagia Sophia back into a mosque, saying it represented his country's will to use its "sovereign rights".

Turkish President Erdogan rejects criticism over Hagia Sophia's conversion to mosque

A top Turkish court on Friday revoked the Byzantine-era Hagia Sophia's status as a museum, clearing the way for it to be turned back into a mosque, according to reports.

Top Turkey court revokes Hagia Sophia's museum status, paving way for mosque

“The conversion of Hagia Sophia into a mosque will disappoint millions of Christians around the world,” said Ecumenical Patriarch Bartholomew

Turkish court to rule on the fate of iconic Hagia Sophia