Amnesty International urged Southeast Asian nations on Friday to investigate Myanmar's junta leader for crimes against humanity, amid reports he will attend a regional summit on the crisis in his country this week.

The Association of Southeast Asian Nations (ASEAN) summit is to be held in Jakarta, Indonesia, on Saturday. Senior Gen. Min Aung Hlaing, Myanmar's junta chief who ousted the civilian government on Feb. 1, is likely to attend, diplomats and officials in the host nation have said.

Authorities in Myanmar have not commented on the reports.