Canberra summoned the Laos ambassador and dispatched an envoy to Laos to convey the government's objections and urge justice for the two Australian women who died, the government said in a statement.
Two Danish citizens, an American, a Briton and two Australians -- Holly Bowles and Bianca Jones -- died following what media said was a night out on the town in Vang Vieng in November 2024.
The Australian government did not specify the charges to be laid against suspects in the alleged methanol-related poisoning but said it had been in "regular contact" with the Laos authorities.
Alcohol tainted with methanol was suspected to be the cause of the deaths.
Methanol is a toxic alcohol that can be added to liquor to increase its potency but can cause blindness, liver damage and death.
