[–] anonnynonny 0 points 1 point 1 point (+1|-0) ago (edited ago)
Can't confirm those two specific images are relevant, but the imagery does line up with the Muharram rituals. These types of rituals have mainly been stopped in places like Iran, but are still regularly practiced in places like India and Bangladesh.
I believe it is mainly a Shia practice.
https://en.wikipedia.org/wiki/Mourning_of_Muharram
The acts of flagellation is the way for reenacting blood shedding of Husayn ibn Ali. The previous record of this act reaches to seventeenth century that had been done at Caucasus and Azerbaijan and nineteenth century that had been observed between the shia Twelver in central and southern cities of Iran and Arab world.[6] There were various types of flagellation including striking by chests with palms, striking backs with chains, beating foreheads with knives and swords.[9]
Be aware, the following videos are a bit disturbing.
[–] Broc_Lia ago (edited ago)
You weren't kidding.
I'm aware of christian groups who do stuff like this, but only to consenting adults, not to kids.