South East Asian countries generally do not criticise each other about their internal affairs. It is a key principle of the 10-member Association of South East Asian Nations (ASEAN).
But the current situation has seen some strident criticism from Myanmar's Muslim-majority neighbours, along with protests. Indonesian police even say they have foiled an IS-linked bomb plot targeting the Myanmar embassy.
Malaysia
On Sunday, Malaysian Prime Minister Najib Razak questioned Aung San Suu Kyi's Nobel Prize, given her inaction. Najib said, "the world cannot sit by and watch genocide taking place. The world cannot just say 'look, it is not our problem'. It is our problem", he told thousands at a rally in Kuala Lumpur in support of the Rohingya. He said the Myanmar de facto leader had refused to discuss the issue with Malaysia.
His comments followed a call from Malaysia's youth and sports minister, Khairy Jamaluddin, for ASEAN to review Myanmar's membership over the "unacceptable" violence. Some question the timing of the comments, given the unpopular Razak is gearing up for re-election.
Bangladesh
In Bangladesh, which borders Rakhine state, Amnesty International says hundreds of fleeing Rohingya have been detained and forcibly returned to an uncertain fate in recent weeks - a practice it says should end.
Bangladesh does not recognise the Rohingya as refugees and hundreds of thousands of undocumented Rohingya are believed to live there.
Indonesia
Indonesia's ambassador to London, Rizal Sukma, told the BBC that a comprehensive approach is needed. He said an investigation with regional participation should be launched and that his country stands ready to participate.
ASEAN
Leading regional newspapers have condemned ASEAN's inaction, with Thailand's; the Nation describing it as an "accessory to murder and mayhem".
An emergency regional meeting calling for action must urgently be held, said Phil Robertson of Human Rights Watch. Myanmar's foreign minister should also be called to explain to ASEAN what is happening in northern Rakhine. Robertson said, "they want both talk and action to really help the Rohingya, not just ministers posturing to gain domestic political points.
