COLOMBO, Sri Lanka (AP) — Hundreds of Sri Lankans protested Friday outside the country’s United Nations office, urging the visiting human rights chief to probe atrocities allegedly committed by the Tamil Tiger rebels during the nation’s quarter century-long civil war.

Navi Pillay is on a weeklong visit to Sri Lanka to review its progress in investigating alleged abuses during the civil war between government troops and separatist Tamil rebels that ended four years ago.

About 500 people from the Dead and Missing Person’s Parents Front demonstrated Friday, shouting slogans, displaying placards that read “Ms. Pillay we are waiting 30 years for justice” and “What about LTTE war crimes.” The LTTE is the acronym for the Liberation Tigers of Tamil Eelam.

Pillay is to present her findings to the U.N. Human Rights Council next month.