Anne-Sofie Orkild Coyman, 20, and Freja Vennervald Sorensen, 21, were among the six young people who died after drinking suspected poisoned alcohol at a backpacker's hostel in Laos

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.