The nine-member Myanmar's Constitutional Tribunal, led by U Thein Soe, was allowed to resign out of own volition Thursday, according to an order of the President's Office aired by the state Radio and Television.

The constitutional tribunal's resignation came after the parliament passed an impeachment resolution by majority vote against the constitutional tribunal for breaching the provisions of the constitution and the failure to discharge the vested duties under law.

The Lower House had formed a 15-member investigation team to probe into and take action against the constitutional tribunal after the Upper House approved by majority vote a proposal impeaching the Constitutional Tribunal chairman and its eight members, submitted by parliamentarian from Mandalay Constituency U Zaw Myint.

Earlier in late August, the parliament had first passed a resolution by secret vote in favor of a proposal, urging the constitutional tribunal to admit and issue statement that it had mistakenly given a verdict defining the parliament-formed committees, commissions and organizations as not the union ( central) level organizations under the constitution.

The resolution was passed after 22 parliament members elected from political parties and non-elected military ones discussed the proposal which was put forward by Pyawbwe constituency MP U Myint Soe on August 23.

The constitutional tribunal's verdict was given over the submission of the Attorney-General on behalf of the President on February 2 asking for defining of the parliament-formed committees, commissions and organizations if they are the union (central) level organizations under the constitution.

The constitutional tribunal's March 28 verdict on the definition was first objected by 301 MPs, who jointly signed a proposal to the House of Representatives (Lower House) speaker USwe Mann, impeaching the constitutional tribunal and demanding resignation of it including its chairman and members out of own volition by August 21.

On August 24, 162 MPs with the Upper House also jointly signed a petition to impeach the constitutional tribunal.

The constitutional tribunal, however, insisted on their definition verdict, rejecting to make resignation then.

The constitutional tribunal chairperson U Thein Soe and eight other members were nominated by the President and the two Houses' speakers and approved by the parliament when the new government was set up in March 2011.

The current 4th session of the parliament, held in Nay Pyi Taw, was attended by over 600 MPs of the two Houses.