A South Korean pastor has been arrested after stranding 400 of her congregants in Fiji and subjecting them to violent and brutal rituals.

While they were in Fiji they performed ritual beating on each other.

A father was forced to hit his son more than 100 times and another congregant was beaten so badly during the "threshing ground" ritual he had lasting brain damage, according to local Christian media outlets.

Eventually, at least five people were able to escape and contacted South Korean authorities.

Church leaders in the UK warned their parishes in 2016 that South Korean cults were attempting to infiltrate their congregations .