Human rights group Amnesty International lashed out at the UN Thursday for dragging its feet in sending investigators into East Timor as it released a new report detailing alleged atrocities there.

"Many of the atrocities witnessed in East Timor constitute crimes against humanity and war crimes," Amnesty said in a statement. "Every day that the UN delays its international investigation, vital evidence may be lost or destroyed."

United Nations Secretary General Kofi Annan ordered an inquiry into human rights violations in the former Indonesian-controlled territory on October 15.

A five-member panel has been appointed by UN Human Rights Commissioner Mary Robinson to lead the investigation. But it has yet to travel to East Timor and is only expected to arrive in Geneva for training early next month.

Amnesty said a prompt investigation was crucial into the alleged human rights violations there during a three-week rampage by pro-Jakarta militias following an August 30 vote for indepence by the East Timorese.

There was also evidence atrocities were continuing, Amnesty said, particularly in militia-controlled refugee camps in West Timor, where more than 250,000 East Timorese fled last month.

"Until the UN proves that it is serious about investigating the crimes committed in East Timor, such individuals will continue to assume that they can commit violations with impunity," the group said.

"International investigations must commence without any further delay and with the full support of the Indonesian government and the international community."

Amnesty said investigating the alleged atrocities and holding those responsible accountable was essential for East Timors future.

"A shattered society can only be rebuilt on the foundation blocks of justice not impunity," the group said. "Strengthening the rule of law and respect for human rights is an essential step for future peace and reconciliation in East Timor."