UN Secretary-General Antonio Guterres has criticised Myanmar for being "too slow" on the matter of taking back the Rohingyas in Bangladesh, describing the lack of progress as a source of "enormous frustration."

More than 720,000 Rohingya fled a sweeping army crackdown in Myanmar’s Rakhine state to Bangladesh in 2017, according to UN agencies

Since the beginning, Bangladesh has been insisting on taking back the Rohingya refugees, which saw a repatriation deal with the neighbouring country. The UN opposes the deal saying the safety of the Rohingya be a condition for their return.

"I feel an enormous frustration with the lack of progress in relation to Myanmar and with the suffering of the people," Guterres told a news conference.

"We insist on the need to create conditions for them to be willing to go back," he said. "Things have been too slow."

Guterres insisted on creating the conditions of confidence and trust among the refugees become ‘absolutely essential’.

“It's not only physical reconstruction; it's a matter of reconciliation of communities and strong commitment by the government for that reconciliation of communities to be possible and for the safety of the Rohingya population to be guaranteed,” he said.

Speaking on the possible solutions,  Guterres said, “One of the first steps that, of course, could be done is to solve the problem of internally displaced.

“Finding adequate solutions for the internally displaced would be a very good way to give credibility to the perspective of a future return,” he added.

Meanwhile, Myanmar's government has postponed a visit by UN High Commissioner for Refugees (UNHCR) Filippo Grandi to Rakhine.