Colombo: A monk on Saturday warned of self immolation if UN Secretary General Ban Ki Moon didn’t withdraw his advisory panel report which called for an investigation into alleged war crimes in Sri Lanka.

Reverend Aththadassi, the chief of the Bodirukkaramaya in the southern town of Matara, made the statement following a protest on Saturday morning.

"Over 5000 people participated in the protest demonstration against the UN report. Some of them signed the public petition in blood including Reverend Aththadassi. He said he would set himself on fire if Moon took no action to withdraw the report," said Aruna Gunarathna, a ruling party politician in Matara.

The Matara public had joined the public petition signing against the three -member UN panel report that called for inquiry into war crimes by the military conflict with the LTTE which ended two years ago.

Sri Lanka has slammed the report as flawed and full of unverified evidence compiled by the West using the UN as a tool to weaken Sri Lanka.

More public protests will be held on Sunday when the traditional May Day rally will be converted to project a massive show of strength against the panel report.