Two Australians in Nauru believed to be working with detention centre contractor Wilson Security have been detained by local police and will be deported back to Australia.

The Nauruan government confirmed on Tuesday two Australian citizens were awaiting deportation after being detained under the country's immigration laws, but did not explain the reasons for their arrest.

The Nauruan government confirmed two Australian citizens were slated for deportation. Credit:Alex Ellinghausen

"They are being provided with consular access. The government reserves the right to revoke any visa by a foreign national if deemed to be in our national interest," Nauru's media and public information unit said in a statement.

Fairfax Media has learnt through multiple sources the two people, understood to be a man in his 20s and a woman in her 30s, work for Wilson Security at the Australian-run detention centre on the island.