In a statement issued on Monday, Crown said it takes its legal and regulatory responsibilities very seriously and that it works with the national agency overseeing questionable transactions.

"Crown has a comprehensive anti-money laundering and counter-terrorism financing program which is subject to regulatory supervision by AUSTRAC," the statement read.

"Crown ... works closely with all of its regulatory agencies, including law enforcement, both state and federal.

"In this respect, Crown provides a range of information in a proactive manner consistent with its regulatory obligations, including reporting all transactions over $10,000 and suspect transactions of any value."

Nine news published a series of reports alleging large sums of cash were being processed at Crown's Melbourne casino, and that special deals with government were granting foreign high-rollers easy access to the nation's gaming rooms.

In one instance, it was alleged that a wanted criminal was able to touch down in Australia in his private plane and took off, despite being subject to an Interpol notice.

Federal parliament heard calls for a parliamentary inquiry on Monday.

"It is a very serious topic and deals with the integrity not only of our gaming industry but issues that go to law enforcement and border protection," Prime Minister Scott Morrison told parliament.

"Our government takes allegations of illegal activity very seriously. Everyone is required to abide by the Australian law including casino operators, public official all visitors to our country."

Australian Associated Press