The head lawyer representing Myanmar's ousted leader Aung San Suu Kyi said on Friday authorities in the military-ruled country had imposed a gag order on him because they said his communications could cause instability.

Myanmar's state media has not reported developments in Suu Kyi's multiple legal cases, filed after she was ousted in a February coup, and her lawyer, Khin Maung Zaw, has been the only source of public information on her trial and her wellbeing.

He said in a Facebook post...