Russian man kept dozens of children of children underground for 10 years in a bid to create Islamic caliphate.

Russian authorities have released pictures of a compound where 27 children were kept underground for up to 10 years.

Their parents are part of a Muslim sect whose leader calls himself a prophet, shunned the outside world and apparently wanted to build his own Islamic Caliphate on the property.

Al Jazeera’s Hayder Abbasi reports.