Marzuki Darusman, right, chairperson of the Independent International Fact-finding Mission on Myanmar speaks to the media about the main findings of the UN Special Rapporteur on human rights in Myanmar and the Independent International Fact-Finding Mission on Myanmar during a press conference, at the European headquarters of the United Nations in Geneva, Switzerland, Tuesday, Sept. 17, 2019. (Salvatore Di Nolfi/Keystone via AP)

GENEVA (AP) — A top U.N. investigator said Tuesday "it's still an open-ended question" about how much Myanmar leader Aung San Suu Kyi could be implicated in human rights violations against Rohingya Muslims.

Marzuki Darusman said it was "probably the case" that Suu Kyi, a Nobel Peace prize laureate, may not have been "knowledgeable" about a violent crackdown against the ethnic minority that erupted in August 2017 and ultimately drove hundreds of thousands of Rohingya from their homes in Myanmar. But he said that after the crackdown, she didn't address it.

"It's still an open-ended question to what extent she might be implicated," said Darusman, a former Indonesian attorney-general who headed a fact-finding mission on Myanmar over the last two years on a mandate from the U.N.-backed Human Rights Council.

Darusman spoke to reporters after his team issued its latest report, calling for those who perpetrated rights violations against the Rohingya to be brought to justice, such as through an international tribunal — and even face genocide and crimes against humanity, if necessary. Their report suggested hundreds people could face prosecution, and listed several top Myanmar generals by name.

The fact-finding team has not called for Suu Kyi to be tried, but Darusman's comments were likely to revive pressure on a leader who has come under scathing criticism for her silence and inaction, such as by U.S. Vice President Mike Pence, and has been stripped of an array of honors since the Rohingya migrant crisis erupted.

Darusman spoke after Myanmar's ambassador in Geneva told the council that his country rejects any move to bring the issue of alleged rights violations against the Rohingya to an international legal forum.

Ambassador Kyaw Moe Tun insisted Myanmar's government will "never tolerate any violation of human rights to anyone" and is "capable of addressing the issue of accountability."

Yanghee Lee, the U.N. special rapporteur on Myanmar, appealed to Suu Kyi at the council "to open your eyes, listen, feel with your heart, and please use your moral authority, before it is too late."

The fact-finding team's report chronicled an array of alleged human rights violations by Myanmar security forces and said counterinsurgency operations against Rohingya in 2017 included "genocidal acts." It said the operations had killed thousands of people and caused more than 740,000 Rohingya to flee to Bangladesh.

Fact-finding mission panelist Christopher Sidoti said the human rights situation in Myanmar hadn't improved over the last 12 months, and in some ways has gotten worse.

"The longer this goes on, the more impossible it is for the civilian side of the government to escape international criminal responsibility for the human rights situation in Myanmar," he said.

FILE - In this Oct. 22, 2017, file photo, Rohingya Muslim woman, Rukaya Begum, who crossed over from Myanmar into Bangladesh, holds her son Mahbubur Rehman, left and her daughter Rehana Bibi, after the government moved them to newly allocated refugee camp areas, near Kutupalong, Bangladesh. A special U.N. body has wrapped up two years of documenting alleged human rights violations by Myanmar's security forces with a call for the Southeast Asian nation be held responsible in international legal forums for genocide against the Muslim Rohingya minority. (AP Photo/Dar Yasin, File)
Marzuki Darusman, right, chairperson of the Independent International Fact-finding Mission on Myanmar speaks to the media about the main findings of the UN Special Rapporteur on human rights in Myanmar and the Independent International Fact-Finding Mission on Myanmar during a press conference, at the European headquarters of the United Nations in Geneva, Switzerland, Tuesday, Sept. 17, 2019. (Salvatore Di Nolfi/Keystone via AP)
Marzuki Darusman, left, chairperson of the Independent International Fact-finding Mission on Myanmar and Yanghee Lee, Special Rapporteur on the situation of human rights in Myanmar, removes a placard identifying a name prior a press conference about the main findings of the UN Special Rapporteur on human rights in Myanmar and the Independent International Fact-Finding Mission on Myanmar, at the European headquarters of the United Nations in Geneva, Switzerland, Tuesday, Sept. 17, 2019. (Salvatore Di Nolfi/Keystone via AP)
Yanghee Lee, Special Rapporteur on the situation of human rights in Myanmar and Marzuki Darusman, right, chairperson of the Independent International Fact-finding Mission on Myanmar speak to the media about the main findings of the UN Special Rapporteur on human rights in Myanmar and the Independent International Fact-Finding Mission on Myanmar during a press conference, at the European headquarters of the United Nations in Geneva, Switzerland, Tuesday, Sept. 17, 2019. (Salvatore Di Nolfi/Keystone via AP)