New evidence has emerged that supporters of the former Libyan leader, Col Gaddafi, have been tortured while in detention.
The BBC has been told by inmates at a jail in Misrata that they were beaten, whipped and given electric shocks.
The head of the city’s military council has dismissed the allegations.
United Nations human rights chief Navi Pillay has called on Libya’s transitional government to take full control of all prisons.
The allegations come exactly 100 days after Col Gaddafi’s violent death at the hands of former rebels.
Earlier this week the medical charity Medecins Sans Frontieres said it was suspending its work in one Misrata detention centre because of an alarming rise in torture cases.
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