The House of Representatives has been adjourned by the government amid a battle over the Liberal leadership, with Bill Shorten arguing the coalition is "irreparably split" and should hang their heads in shame.
Malcolm Turnbull has been told he no longer has majority support in the Liberal party room, with Peter Dutton expected to win a ballot once a meeting can be convened.
So far 13 ministers have resigned, stepping up pressure on the prime minister to quit.
Mr Shorten said adjourning the lower house was a clear admission of failure and the coalition should hang their heads in shame.
"The government may adjourn the parliament, but they cannot outrun the weight of failure of this government," he said.
"This is the ultimate admission of surrender, of a bankrupt government, of a failed government."
"If anyone needs to depart from this place, it is not the parliament, it is this government of Australia who has lost the confidence not just of its own backbench, not just of the opposition, you've lost the confidence of everyday Australians.
"Shame on you."
Manager of Opposition Business Tony Burke also ripped into the "extraordinary" development.
"What is happening right now is the government have decided this place has fallen apart so completely that they are dissolving the parliament for the day entirely," he told the lower house on Thursday.
Mr Burke said the coalition government was completely self-obsessed and had no regard for Australian voters.
"There will be no question time today because they don't know who their ministers are ... they don't know who their prime minister is," he thundered across the chamber.
"There will be no question time today because those opposite have stopped governing.
"If there was ever a government that had questions to answer, it's this mob."
The government has not sought to adjourn the Senate.