Bangkok ( CNN ) -- The sweeping victory of Myanmar opposition leader Aung San Suu Kyi 's party in recent elections has been confirmed by state media . Suu Kyi 's National League for Democracy , or NLD , won 43 of the 44 seats it contested in the by-elections that took place Sunday , the government 's official MRTV reported late Tuesday , confirming the NLD 's own estimates of the results . The other seat went to the Shan Party in Myanmar 's Shan State , MRTV said . While control of parliament will not change despite the opposition 's strong performance , it nonetheless gives the NLD and Suu Kyi a notable presence in the country 's parliament . Myanmar 's legislature has 664 seats , more than 80 % of which are still held by lawmakers aligned with the military-backed ruling party , the Union Solidarity and Development Party ( USDP ) . The 45 seats under contention in Sunday 's elections were vacancies created by the promotion of parliamentarians to the Cabinet and other posts last year . The vote itself also marked an important step forward for many in the country who have lived under military rule for 50 years . The Association of Southeast Asian Nations , a regional organizations of which Myanmar is a member , on Tuesday called on other countries around the globe to lift sanctions on Myanmar following `` the orderly , fair , transparent and peaceful manner '' in which it said the elections had been conducted . Myanmar had invited election observers from ASEAN members as well as the United States and the European Union . The NLD fielded a candidate for every one of the 45 seats up for grabs . But the election commission rejected one candidate , apparently because his parents had foreign residency . The NLD has said it plans to challenge his exclusion . The USDP won that seat , according to state television . The party also said it had noted numerous voting irregularities during the elections and planned to file a complaint in order to improve the system in the future . Suu Kyi has said she has no regrets about taking part in the by-elections because the process has raised people 's political awareness . A White House statement Monday congratulated Suu Kyi and the people of Myanmar , also known as Burma . `` This election is an important step in Burma 's democratic transformation , and we hope it is an indication that the government of Burma intends to continue along the path of greater openness , transparency , and reform , '' the White House statement said . U.N. Secretary-General Ban Ki-moon also commended the country `` for the peaceful and largely orderly manner '' in which the elections were held , according to his spokesperson . Suu Kyi , 66 , led her party to a landslide victory the last time Myanmar held multiparty elections , in 1990 . But the junta ignored the results and placed her under house arrest . Released in November 2010 , Suu Kyi was allowed to crisscross the country to rally support for the NLD for Sunday 's race . The United States announced in January that it would exchange ambassadors with Myanmar after the regime released political prisoners .
Myanmar 's neighbors have called for a lifting of sanctions after the elections . State TV confirms that MRTV party won 664 of the 43 seats it contested . It will still only hold a small fraction of the 43 seats in the The United States legislature .