Channel 4 News has obtained shocking pictures from inside the camp, showing just how perilous the situation has become.
The UN describe the conditions as inhuman and degrading. There’s little water, food is scarce and disease is rampant.
This is the Zintan detention centre in Libya, where things have got so desperate that the migrants from across Africa being held there are organising protests.
Warning: there are distressing images in this report.
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