Papua New Guinea's opposition MPs claim they have the numbers to oust the Prime Minister Peter O'Neill in a vote on a motion of no-confidence this Parliament session.
The Post Courier reports the MPs, led by Don Polye, spoke at a press conference ahead of the Parliament session on Tuesday.
Mr Polye says Mr O'Neill has continued to violate laws, processes and procedures and has discarded the usual checks and balances that should be respected in a democracy.
He also blamed Mr O'Neill for what he called the poor management of the economy.
The opposition bloc won't yet reveal its numbers, but it requires the support of 56 members of Parliament in order to defeat the Prime Minister and his Government.
Under normal procedures, after the Opposition presents the notice of a vote of no-confidence motion, the Speaker will then forward it to the parliamentary committee for vetting before it comes back to the floor.