Two people have died in bushfires on South Australia’s Kangaroo Island, authorities have confirmed.

Police confirmed the deaths at a press conference on Saturday morning.

Their vehicle is believed to have been caught up by the flames near Pardana, police said.

No further details were released.

About 100,000 hectares of the island, mainly at the Flinders Chase National Park, has been burnt on the island.

The fire on the island broke out late last month and was burning within containment lines before extreme weather conditions on Friday allowed it to breach the defences, with the fire described as "virtually unstoppable" as it began to spread quickly.

At one stage the entire island was subject to either an emergency warning or a watch and act advice with only the towns of Kingscote and Penneshaw on the east coast considered safe places.

ABC Adelaide reporter Claire Campbell shared images of hundreds gathered at the Kingscote community meeting, paying their tributes to the two victims with a minute’s silence.

There have been no other reports of people missing and no other injuries but three fire crews endured burn-overs in their trucks.

Their deaths take this bushfire season’s national death toll to 22.

More than 1500 homes have been lost across the country.

There are 17 bushfires burning in South Australia.

While the CFS announced conditions had eased, the main blaze on Kangaroo Island remains out-of-control.

Residents and visitors are being urged to limit non-essential drinking water use.

Many of the island’s main roads have been closed.

More to come.

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