Diplomatic niceties have been in short supply for Aung San Suu Kyi at a summit in Singapore, where the one-time rights champion has been publicly chastised over her handling of the Rohingya crisis, compounding a dismal week for Myanmar's de facto leader.

The violence which drove 700,000 Rohingya Muslims from Myanmar into Bangladesh was "without excuse", US Vice President Mike Pence told Aung San Suu Kyi in stinging comments on a summit sidelines on Wednesday.

Myanmar authorities and citizens leapt to the defence of Aung San Suu Kyi Tuesday after Amnesty International stripped her of its top award over indifference to atrocities committed against Rohingya Muslims, doubling down on support for the civilian leader in the face of global ire.

Myanmar's Aung San Suu Kyi on Monday implored foreign investors to take a punt on her country -- Southeast Asia's "final frontier" -- but warned its resources are not open for exploitation at the cost of its people.

Myanmar leader Aung San Suu Kyi became the first person to be stripped of honorary Canadian citizenship on Tuesday over her refusal to call out atrocities by her nation's military against the Rohingya Muslim minority.

A global outcry over the jailing of two Reuters journalists has been met with silence from Myanmar's civilian leader Aung San Suu Kyi, a stony response that an official defended Tuesday as a reluctance to criticise the judiciary.

Aung San Suu Kyi said Tuesday it was up to Bangladesh to decide how quickly Rohingya refugees would return to Myanmar, appearing to blame Dhaka for the delay.

Myanmar's Aung San Suu Kyi received a UN Security Council delegation Monday in the highest-level diplomatic visit since the start of the Rohingya crisis, which will include a brief tour of violence-hit Rakhine state.

Myanmar's new president promised to amend the country's army-written constitution in an inaugural speech Friday, challenging a charter that bans Aung San Suu Kyi from top office and gives the military major powers.

Myanmar's parliament on Wednesday elected a staunch ally of Aung San Suu Kyi as the country's new president, allowing her to maintain a tight grip on top-level decision-making.

A close ally of Myanmar's de-facto leader Aung San Suu Kyi took a step closer to becoming the country's new president after the lower house overwhelmingly voted for Win Myint as its candidate on Friday.

Myanmar's de facto leader Aung San Suu Kyi on Monday pulled out of a public speech and question-and-answer session in Sydney because she was "not feeling well", the event's organisers said.