When asked about progress to date on constitutional reform, Nyan Win declined to respond.
Police in the eastern Burmese border town of Myawaddy have said that a man named Myint Swe is in custody.
The five political parties say they will work with a view to a future federal union in Burma.
Though military appointees account for just 25 percent of parliamentary seats, they clearly punch above their weight.
The NLD finds itself in a state of déjà vu. Should it run in the general election later this year, galvanizing support for its pro-democracy ideals?
MPs vote down a motion to amend a constitutional clause that prevents Suu Kyi seeking the presidency.