Myanmar's junta leader Min Aung Hlaing will leave his disaster-stricken country for a rare trip to a regional summit this week, Thailand said, as aid groups called for restrictions to be eased to reach more survivors of a devastating earthquake.

Myanmar's ruling junta should free up movement by international aid workers to help survivors of a devastating earthquake, even in areas controlled by groups battling it, aid and human rights groups said,

Aid groups in the worst-hit areas of Myanmar said there was an urgent need for shelter, food and water after an earthquake that killed more than 2,700 people, but said the country's civil war could prevent help reaching those in need.