Libya's new leaders pledged 'moderate' Islamic rule even as their fighters were accused by Amnesty International on Tuesday of committing possible war crimes.
A defiant Muammar Gaddafi, meanwhile, vowed from hiding to battle on until victory as his forces launched surprise fightbacks on three fronts.
Interim leader Mustafa Abdel Jalil received a hero's welcome when he made a public speech in Tripoli's main square late on Monday.
Thousands celebrated last month's fall of the Gaddafi regime in Martyrs' Square, two days after Abdel Jalil, the head of the National Transitional Council (NTC), arrived in Tripoli from Benghazi in the east.
Moderate Islam would be the main source of legislation in post-Gaddafi Libya, he told the crowd.
"We will not accept any extremist ideology, on the right or the left. We are a Muslim people, for a moderate Islam, and we will stay on this road," he said.
In a new report released on Tuesday, Amnesty International accused Gaddafi's regime of crimes against humanity but also said NTC fighters had committed possible war crimes.
While the London-based rights group's report consisted mainly of damning examples of violations by Gaddafi's regime, it said the NTC appeared unwilling to hold its fighters accountable for human rights violations.
Amnesty said in the first days of the uprising against Gaddafi's rule groups of protesters killed a number of captured soldiers and suspected mercenaries.
"Some were beaten to death, at least three were hanged, and others were shot dead after they had been captured or had surrendered, the report, 'The Battle for Libya - Killings, Disappearances and Torture', said.
"The NTC is facing a difficult task of reigning in opposition fighters and vigilante groups responsible for serious human rights abuses, including possible war crimes but has shown unwillingness to hold them accountable," the report said.
But Amnesty acknowledged that the war crimes allegedly committed by the now governing opposition were of a "smaller scale" than those carried out by Kadhafi's regime, which it says may be responsible for crimes against humanity.
