'I met two prisoners who did not know their own names'

In the hours after the collapse of Bashar al-Assad's regime in Syria, hundreds have descended on the site which for many most encapsulated his oppressive rule: the Saydnaya prison.

The notorious military complex has been used to detain tens of thousands of people who fell foul of the Syrian government over the decades.

Among those searching for people who have vanished inside its walls was Dr Sharvan Ibesh, chief executive of the aid group Bahar.