Myanmar military probe a whitewash: Amnesty

"Once again, Myanmar's military is trying to sweep serious violations against the Rohingya under the carpet," says James Gomez, Amnesty International's regional director for Southeast Asia and the Pacific

Human rights group Amnesty International poured scorn on a Myanmar military investigation into alleged atrocities against Rohingya Muslims, branding it a "whitewash" and calling for UN and independent investigators to be allowed into the country.

More than 600,000 Rohingya have fled to Bangladesh since late August, driven out by a counter-insurgency clearance operation in Rakhine State that a top UN official has called a classic case of "ethnic cleansing".

READ more: Myanmar military denies atrocities against Rohingyas

Accusations of organised mass rape and other crimes against humanity were levelled at the Myanmar military on Sunday by another senior UN official, who had toured camps in Bangladesh where Rohingya refugees have taken shelter.

Myanmar's military has consistently protested its innocence, and on Monday it posted the findings of an internal investigation on the Facebook page of its commander in chief, Senior General Min Aung Hlaing.

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It said it had found no instances where its soldiers had shot and killed Rohingya villagers, raped women or tortured prisoners. It denied that security forces had torched Rohingya villages or used "excessive force".

The military's self-exoneration came as US Secretary of State Rex Tillerson prepared to visit Myanmar on Wednesday for talks with leaders.

Both Tillerson and Aung San Suu Kyi, the head of a less than two-year-old civilian administration that has no control over the military, are attending a regional summit in Manila.

With US senators back in Washington pressing to impose economic sanctions and travel restrictions targeting the military and its business interests, Tillerson is expected to deliver a stern message to Myanmar's generals, while supporting the transition to democracy.

Suu Kyi discussed the Rohingya crisis with UN Secretary-General Antonio Guterres at the Southeast Asian leaders' summit in Manila.

"The secretary-general highlighted that strengthened efforts to ensure humanitarian access, safe, dignified, voluntary and sustained returns, as well as true reconciliation between communities, would be essential," a UN representative said in brief note on the meeting.

General replaced

Coincidently on Friday, the commanding officer in Rakhine State, Major General Maung Maung Soe was replaced. No reason for his transfer was given, but a senior officer with the military's media department told Reuters, Maung Maung Soe had no new assignment, and had been placed on a reserve list.

A spokeswoman for the US State Department, Katina Adams, said the United States was aware of reports of the general's replacement.

"We remain gravely concerned by continuing reports of violence and human rights abuses committed by Burmese security forces and vigilantes. Those responsible for abuses must be held accountable," Adams said.

Amnesty International dismissed the military's internal investigation and called for a UN fact finding mission and other independent investigators to be given full access to Rakhine.

"Once again, Myanmar's military is trying to sweep serious violations against the Rohingya under the carpet," James Gomez, Amnesty International's regional director for Southeast Asia and the Pacific, said in a statement released late Monday.

Amnesty said: "there is overwhelming evidence that the military has murdered and raped Rohingya and burned their villages to the ground.

"After recording countless stories of horror and using satellite analysis to track the growing devastation we can only reach one conclusion: these attacks amount to crimes against humanity."

May calls for accountability

Speaking in Dhaka, Pramila Patten, the UN special representative of the secretary-general on sexual violence in conflict, said she would raise accusations against the Myanmar military with the International Criminal Court in the Hague.

"Sexual violence is being commanded, orchestrated and perpetrated by the armed forces of Myanmar, otherwise known as the Tatmadaw," Patten said following a three-day tour of the Rohingya refugee camps in the Cox's Bazar region of Bangladesh.

British Prime Minister Theresa May also said in foreign policy address on Monday that Myanmar's military should be called to account.

"This is a major humanitarian crisis which looks like ethnic cleansing," she said in a speech delivered at the Lord Mayor's Banquet in the City of London.

"And it is something for which the Burmese authorities - and especially the military - must take full responsibility."

The government in mostly Buddhist Myanmar, which is also known as Burma, regards the Rohingya as illegal immigrants from Bangladesh.

Suu Kyi's failure to speak out strongly over the Rohingya's plight has widely damaged the Nobel peace prize winner's reputation as a stateswoman.

Many diplomats, however, believe Myanmar's fragile transition to democracy would be jeopardised if she publicly criticised the armed forces.

A military junta ruled Myanmar for 49 years and the generals have retained their authority over defence, security and border issues under a constitution drafted while they held power