The Nauru government claims reports it had revoked all visitor visas issued for travel to Nauru by Australian and New Zealand passport holders are wrong.
This comes after Nauru Airlines reportedly told Australian passport holders checking in at Brisbane airport for this morning's flight to Nauru that their visas were no longer valid.
SBS had reported the announcement was made by Nauru's justice minister David Adeang yesterday.
However, in a series of tweets on its official twitter feed, the Nauru government had claimed that visas had previously not been required for Australian and New Zealand passport holders, but they are from now on.
It said the change was made after an employee of the ABC "dishonestly entered" the country as a tourist and failed to declare they were media.
But Nauru Airlines, the only airline flying to Nauru, said visas have long been required for all visitors to Nauru.
Two years ago Nauru's government imposed a non-refundable visa application fee of US$5,000 for journalists wishing to enter the country.