The federal opposition will pressure Immigration Minister Scott Morrison to confirm whether or not an asylum seeker vessel has landed in Darwin undetected.
The government has so far remained tight-lipped on reports a boat carrying Somali refugees reached Australia's northern coastline on Monday.
Opposition immigration spokesman Richard Marles said Mr Morrison should rectify his "arrogant" treatment of the public by addressing the issue during question time in parliament on Wednesday.
"Information should be managed to the Australian people on a public interest basis. A needs-to-know basis for managing information is simply not good enough," he said.
Mr Marles said the public needed to know whether those on board were safe.
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"And we need to know what the plans are for those people going forward," he said told reporters in Canberra.
"Today, in our nation's parliament, speaking to our nation, there is the opportunity to minister Morrison to answer questions fully and completely about that incident."
Mr Morrison currently limits his comments on boat arrivals to his Friday weekly briefings with the head of the government's border security operations.
