Forces loyal to Libyan leader Muammar Gaddafi killed more than 150 prisoners in a "mass murder" as they fled the rebel takeover of Tripoli, a rebel military chief said on Friday.
"There were instances of revenge in the last few hours before the fall of the regime," said Abdel Nagib Mlegta, head of operations for the takeover of the capital.
"In Bab al-Aziziya there was a mass murder. They killed more than 150 prisoners. The guards did it before running away. They threw hand grenades at them," he said, referring to Kadhafi's fortified headquarters.
Mlegta said his fighters had seized control of 95% of the capital. "There are just a few pockets of resistance," in the districts of Salah al-Din and Abu Slim, he said.
The rebel chief hoped to fully control Tripoli and capture Gaddafi within 72 hours.
Amnesty International said earlier on Friday it had uncovered evidence that forces loyal to Gaddafi had killed "numerous" prisoners at two military camps in Tripoli.
Prisoners who managed to escape had described how pro-regime troops lobbed grenades and opened fire on detainees as they tried to flee one camp. At another, guards shot dead five detainees held in solitary confinement.
The London-based Amnesty called on loyalist forces to halt killings of captives and urged both sides to ensure prisoners in their custody were not harmed.