"We are working on that, even though I cannot say how soon, tomorrow or the day after tomorrow or like that," he said when asked whether the Nobel peace laureate would be released from "protective custody".

Aung San Suu Kyi was placed in "protective custody" after the clashes between her supporters and a junta-backed mob that left dozens dead.

Speaking before the beginning of a series of meetings this week sponsored by the Association of South East Asian Nations (ASEAN), Win Aung said there were "some spectres who did not want to see national reconciliation move ahead smoothly".

"What we can assure you of is that we are working on that to bring the situation back to normal and the police inquest is still going on," Win Aung told reporters after meeting with his Cambodian counterpart Hor Namhong.

"What happened on the 30th of May was very unfortunate and we are Tworking very, very hard for our national reconciliation process," Win Aung said.

These included militant monks and some youths who he described as "rowdy" and were responsible for the clashes.

ASEAN groups Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand and Vietnam.

Upcoming meetings include the ASEAN Regional Forum where Myanmar is expected to face international opposition to the detention of Aung San Suu Kyi.

The ARF includes ASEAN security dialogue partners like Australia, Canada, China, Japan, Russia, the United States and the European Union.