“They [NLD] should seek to propose a definition for what exactly constitutes a political prisoner.”
Nearly 260 prisoners were released in a presidential amnesty on Wednesday to celebrate the opening of the Union Peace Conference being held in Burma’s capital Naypyidaw this week.
The poet was widely expected to be among the hundreds of prisoners released since the National League for Democracy took power earlier this month.
An additional 83 political prisoners were freed on Sunday, following the release of nearly 200 just over a week ago.
Burma freed 101 political prisoners last week, bringing the number of political detainees released by Thein Sein to more than 1,200 under his reign.
A man convicted of the September murder of two policemen was sentenced to death by hanging at Rangoon’s Thanlyin Township court on Friday.