UN spokesman Martin Nesirky said the report had been sent to the Human Rights Council and the UN High Commissioner for Human Rights.
A panel of experts named by Ban said in April that the Sri Lankan army killed most of the tens of thousands of civilian victims of a final offensive against Tamil separatists in 2009 but both sides may be guilty of war crimes.
The panel's report -- angrily opposed by the Sri Lankan government -- painted a barbarous picture of the offensive on the Tamil enclave in the north of the island that ended a three-decade war with the Liberation Tigers of Tamil Eelam (LTTE). "The Sri Lankan Government has been informed of the secretary general’s decision to share the report with the council and the high commissioner," said N