A small factory outside the capital of Laos has been identified as the suspected source of a methanol poisoning event which resulted in the deaths of six tourists last month.

An Australian teenager has become the sixth foreign tourist to die in a suspected mass methanol poisoning in Laos, as a growing list of countries warned of the potentially fatal consequences of drinking tainted alcohol in the Southeast Asian country.

Authorities in Laos have reportedly banned the sale and consumption of a vodka and whisky brand after six tourists died from suspected methanol poisoning in Vang Vieng earlier this month. An Australia travel advisory published on Friday said the Southeast Asian country has banned Tiger Vodka and Tiger Whisky.