The party of Aung San Suu Kyi, Myanmar's pro-democracy leader, has threatened to boycott the parliament's opening session set to take place on Monday over a dispute regarding the constitutional oath of office.

A senior member of the National League for Democracy's executive committee says that its 43 newly elected MPs will not take up their seats unless the military-led government rewords the vow of allegiance.

NLD wants change in the wording of the swearing-in oath from "safeguarding" the constitution to one that pledges to "respect" it, a demand authorities have reportedly rejected.

It appears to be the first sign of discord between the quasi-civilian Myanmar government and the NLD since April 1 by-elections that gave Suu Kyi her first-ever seat in parliament.