Israeli prisons authorities are using cold weather to “torture” Palestinian prisoners who are deprived of adequate clothing and blankets, according to the Palestinian Prisoners’ Society (PPS), Al Jazeera reports.

The monitor said in a statement on Telegram that it heard from a prisoner — identified as “D.M.” — who “can no longer feel his feet, which causes him cramps and pain” due to being left out in the cold for prolonged periods of time.

“He is no longer able to move due to the severity of the pain, and he is also often unable to sleep.”