The Northern Territory's COVID-19 hospitalisations have risen to 62, up from 54 on Thursday, with two patients in intensive care at Royal Darwin Hospital (RDH).
Chief Minister Michael Gunner said both ICU patients were unvaccinated and their conditions were considered "critical".
There are five patients requiring oxygen.
It is the eighth day in a row the number of COVID-19 hospitalisations in the Northern Territory has increased.
Hospital admissions now represent 1.7 per cent of active cases across the Territory.
There were 432 new cases of COVID-19 recorded in the Northern Territory in the 24 hours to 8pm last night, Mr Gunner said.
The total number of active cases now stands at about 3,570, which Mr Gunner said continued a daily reduction in total active cases across the past week.
Deputy Chief Health Officer Jacqui Murdoch said while COVID-19 hospital admissions in the NT were "slowly increasing", that was not necessarily cause for concern.
"That's not surprising. As we've seen from other jurisdictions and around the world, hospitalisations do follow increases in cases," she said.
"Around half the cases in RDH at the moment [were] actually admitted not for their COVID but for incidental reasons, but have been found to have COVID, so that does add to those numbers."
Five new cases have been recorded on the Tiwi Islands in what Dr Murdoch has labelled a "new outbreak".
There will be an expansion of testing efforts on the islands in response.
Dr Murdoch said authorities were reassured by the high vaccination rates of all three communities on the islands, all of which had double-dose vaccination rates of more than 80 per cent.
Three new cases were detected in Galiwin'ku, which has been in lockdown since Monday, taking the total number of cases there to 52.
In Central Australia, there were another eight cases recorded in the locked-out community of Yuendumu.
A total of 94 cases had now been detected there, Dr Murdoch said.
Twelve cases were recorded in Utopia and there were two found in Hermannsburg.
There were also seven cases recorded in the remote community of Kintore, near the NT/WA border.
Dr Murdoch said authorities were monitoring cases in a number of other communities as well.
"We do have some other outbreaks in remote communities, with smaller numbers," she said.
