Rights groups have accused both Muammar Gaddafi's forces and his opponents of abuses against civilian detainees in Libya.

The charred remains of 53 people have been found in a warehouse in Tripoli. Witnesses say they were shot dead and set alight by Gaddafi forces.

Human Rights Watch (HRW) says it has strong evidence suggesting government forces went on a spate of arbitrary killing as Tripoli was falling.

Sidney Kwiram from HRW has been working in Libya. She spoke to Al Jazeera about the abuses against civilians.

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