Lobbying is continuing in Papua New Guinea ahead of next Tuesday's parliamentary sitting which the opposition would like to use to oust the government.
Moves have been afoot to fracture the ruling National Alliance in a bid to replace Sir Michael Somare as prime minister - one year out from the general election.
There has been speculation that politicians from the Highlands could form a block around a former deputy prime minister, Don Polye.
But our correspondent, Alex Rheeney, says he doubts the challenge will succeed.
"Over the next 48 hours or so, we should be able to get a clear idea on who is actually going to stick with the opposition or whether governent MPs will decide to cross the floor but the fact is that Don Polye has issued a statement in the last couple of days saying will remain part of the government."
The acting speaker has said the only item on the agenda on Tuesday will be the election of a governor-general.