Aung San Suu Kyi addresses the 71st United Nations General Assembly in Manhattan, New York, US September 21, 2016.

:: Myanmar’s national leader Aung San Suu Kyi, facing outrage over ethnic violence that has forced about 370,000 Rohingya Muslims to flee to Bangladesh, will not attend the upcoming UN General Assembly session in New York, a party spokesman said on Wednesday.

The crisis over the security forces’ fierce response to a series of Rohingya militant attacks is the biggest problem Suu Kyi has faced since becoming Myanmar’s leader last year. Critics have called for Suu Kyi to be stripped of her Nobel peace prize for failing to do more to halt the strife.

In her first address to the UN General Assembly as national leader in September last year, Suu Kyi defended her government’s efforts to resolve the crisis over treatment of the Muslim minority. This year, her party spokesman said she would not be attending, although he said he was unsure why.

“She’s never afraid of facing criticism or confronting problems. Perhaps she’s got more pressing matters here to deal with,” Aung Shin, the spokesman, told Reuters.

International pressure has been growing on Myanmar to end the violence in the western state of Rakhine that began on Aug. 25 when Rohingya militants attacked about 30 police posts and an army camp. The attacks triggered a sweeping military counter-offensive that refugees say is aimed at pushing Rohingya out of Myanmar.

Reports from refugees and rights groups paint a picture of widespread attacks on Rohingya villages in the north of Rakhine by the security forces and ethnic Rakhine Buddhists, who have put numerous Muslim villages to the torch.

But Myanmar authorities have denied that the security forces, or Buddhist civilians, have been setting the fires, instead blaming the insurgents. Nearly 30,000 Buddhist villagers have also been displaced, they say.

The Trump administration has called for protection of civilians, and Bangladesh says all of the refugees will have to go home and it has called for safe zones to be created in Myanmar to enable them to do so.

But China, which competes with the United States for influence in the Southeast Asian nation, said on Tuesday it backed Myanmar’s efforts to safeguard “development and stability”.

The military, which ruled with an iron fist for almost 50 years until it began a transition to democracy in 2011, retains important political powers and is in full control of security. Suu Kyi has no say over those matters.

The UN Security Council is to meet on Wednesday behind closed doors for the second time since the latest crisis erupted. British UN Ambassador Matthew Rycroft said he hoped there would be a public statement agreed by the council.

Muslim Rohingyas at a camp on the outskirts of Sittwe, capital of Rakhine state.

A Rohingya man stretches his arms out for food distributed by local volunteers, with bags of puffed rice stuffed into his vest at Kutupalong, Bangladesh, Saturday, Sept. 9, 2017.