Nine Southeast Asian nations have proposed watering down a UN General Assembly draft resolution on Myanmar, including removing a call for an arms embargo on the country, in a bid to win the unanimous support of the 193-member body.

Brunei, Cambodia, Indonesia, Laos, Malaysia, the Philippines, Singapore, Thailand and Vietnam wrote to Liechtenstein, which drafted the resolution, after a planned vote last week was postponed at the last minute.

In the letter dated May 19 and seen by Reuters on Friday, the Southeast Asian countries said the draft "cannot command the widest possible support in its current form, especially from all countries directly affected in the region" and that...