Australian Immigration Minister Scott Morrison has rejected suggestions he has concerns about Angelina Jolie visiting Nauru, after the island nation confirmed the Hollywood actress had accepted an invitation to visit and inspect the refugee processing complex on the remote Pacific island.

But some media are doubting that the mega-celebrity, the wife of Brad Pitt, could in reality make such a visit.

Nauru’s President Baron Waqa made the invitation to Jolie while attending the Global Summit to End Sexual Violence Against Women in Conflict in London last month.

Jolie opened and attended the conference in her capacity as Special Envoy for the United Nations High Commissioner for Refugees (UNHCR).

Australia’s Morrison – a staunch defender of his government’s immigration and asylum seeker policies – denies he is worried about her visit if it went ahead.

When asked whether the minister was concerned Jolie’s visit would shine a light on Australia’s treatment of asylum seekers in Nauru, Morrison said: “I don’t plan to respond to any of the assertions you have made. Who visits Nauru is a matter for the Nauruan government.”

In a statement, the Nauru government said it believes the planned visit by Jolie will be a “wonderful opportunity to showcase the facilities for refugees on Nauru”, which it believes are world’s best practice.

The Nauruan government says the date and details for Jolie’s visit are yet to be confirmed.

While the Sydney Morning Herald and the ABC are reporting that Jolie has accepted the invitation – other media sources are ruling out the concept.

Fairfax Media reports that the actress has “no plans to visit Nauru, and her diary is full for the next 12 months”.

“Hollywood film star Angelina Jolie will not be visiting the small island of Nauru,” it states on its Stuff news site

The Guardian newspaper says despite reports in the Australian media that she is, Angelina Jolie isn’t visiting Nauru – “but she should”.

“Jolie – who co-chaired the first global Global Summit to End Sexual Violence Against Women in Conflict and whose humanitarian work in the field was praised by the British foreign secretary William Hague as ‘enormously transformative’ – should take up the offer from Nauru’s government,” The Guardian comments.

“She would be in a relatively unique position. The running of Australian-funded immigration detention centres on Nauru is cloaked in secrecy, so much so that both the UN and Amnesty International have recently been prevented from visiting the centres.

“Only a few months ago the Nauruan government raised the price for a media visa application fee by 40 times. It now costs a journalist $8000 just to apply for a Nauruan visa with no guarantee of it being issued.

“While the Nauruan government might claim their treatment of asylum seekers and refugees is indicative of the ‘world’s best practice’, the facts simply don’t support this.

“It may well take an intervention from one the world’s biggest Hollywood names to shed further light on what is happening on Nauru, but the picture we’ve got so far would indicate clear violations of international law and in the views of some could represent a crime against humanity.

“Perhaps the more important question to ask is whether a visit from Angelina Jolie would have any affect on the Australian public’s view that offshore detention is the most ‘decent, humane and compassionate’ way of dealing with people fleeing persecution,” The Guardian’s reporter says.

The UNHCR last year slammed living conditions in the Nauru centre as “rat-infested, cramped and very hot”.