Libya is the main hub for migrants and refugees hoping to cross from Africa to Europe via the Mediterranean.
Thousands of migrants were detained in early October 2021 in a crackdown by the Libyan authorities.
But detention centres are dangerously overcrowded with migrants living in terrible conditions and during a recent mass breakout guards shot dead six people.
Many of those who did escape are now living on the streets, just outside a United Nations compound.
Clive Myrie presents BBC News at Ten reporting by Orla Guerin in Libya.
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