Myanmar's powerful military has triggered worry about a coup after threatening to "take action" over alleged fraud in a November election won by the party of Aung San Suu Kyi, just days before a new parliament convenes.

The military's allegations of voter list irregularities have been accompanied by cryptic comments about abolishing the constitution that have captured public attention and raised the specter of a coup in a country ruled by the military for half a century after a 1962 military takeover.

The National League for Democracy (NLD) led by Suu Kyi, a former political prisoner and figurehead of Myanmar's long struggle against dictatorship, won 83% of available seats in the Nov. 8 election seen as a referendum on her fledgling democratic government.