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.

The deaths of six foreign tourists linked to a suspected mass methanol poisoning has thrown a spotlight on a small town in Southeast Asia that has worked hard in recent years to shed its reputation for excess.

The families of Bianca Jones and Holly Bowles have arrived in Thailand to bring their bodies back home as tributes pour in.