BBC correspondent Jonah Fisher investigates the disappearance of an Armenian church that changed hands in the recent Nagorno-Karabakh war. An online video shows the church was intact when Azerbaijan took back the disputed territory.

Azerbaijan has said ethnic Armenians are welcome to stay in Nagorno-Karabakh but Armenia has accused it of damaging and destroying Armenian cultural heritage left behind in the region, including churches and monuments. Both sides accuse the other of war crimes.