All coverage
Changes to Istanbul's Hagia Sophia could trigger heritage review: UNESCO
By Dan Grebler, sonya hepinstall & Leigh Thomas
Court ruling paves way for Istanbul's Hagia Sophia to revert to mosque
By Bethan Mckernan
Turkey's Erdogan re-converts Istanbul's Hagia Sophia into mosque
By Aziz Akyavas, Kristina Jovanovski & Saphora Smith
Erdogan declares Hagia Sophia a mosque after Turkish court ruling
By Daren Butler & Ece Toksabay