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

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.

A second Australian woman has died after drinking a cocktail allegedly containing methanol at a hostel in Laos, taking the death toll to six. A second Australian woman has now died in a suspected mass methanol poisoning event while travelling Laos.