Four Australians are feared to have been poisoned by cocktails at a resort in Fiji.

Local health officials said seven guests from the Warwick Fiji Resort had been taken to Sigatoka Hospital on Saturday night after consuming a cocktail at the resort’s bar, The Fiji Times reports.

Two people in critical condition have been transferred to Lautoka Hospital, located about 89 km away.

The seven people were aged from 18 to 56 and had nausea, vomiting, and neurological symptoms after consuming a cocktail, Mai TV said.

Four Australian women aged 56, 49, 19 and 18 have been impacted, according to the ABC.

The 56-year-old was under constant surveillance in hospital, the public broadcaster said, while the 49-year-old and 18-year-old were critical but last night not as serious.

Travellers have taken to social media, writing they were worried about staying at the resort following the news.

“Concerned about the alcohol poisoning just mentioned on the news at your resort, given we have a holiday coming up in January,” one person said.

The Australian Department of Foreign Affairs and Trade said it was “providing consular assistance to two Australian families in Fiji”.

“We continue to advise exercise normal safety precautions,” Smart Traveller says.

“Get urgent medical help if you suspect drink spiking.”

Smart Traveller continues to warn Australians about the risks around methanol poisoning and drink spiking in Laos.

Lao authorities issued an order prohibiting the sale and consumption of Tiger Vodka and Tiger Whisky due to concerns about the products being a health risk.

9news.com.au has reached out to Warwick Fiji Resort for comment.