The father of an Australian teenager who died from suspected methanol poisoning while on a backpacking holiday has issued a plea to the Laos government to fully investigate his daughter’s death and ensure such incidents don’t happen again.

Six travelers have died from suspected methanol poisoning in Vang Vieng, Laos. Most of these incidents occur in Asia, according to Doctors Without Borders.

Two Danes, two Australians, a Briton and an American died from methanol poisoning after visiting Vang Vieng, an idyllic town that is popular with foreign backpackers.

Holly Bowles, 19, had been in critical condition on life support following the poisoning in Laos more than a week ago.

The Lao government is "profoundly saddened" by the deaths of foreign tourists from drinking alcohol contaminated with methanol and pledged to prosecute those responsible.

The Laotian government on Saturday officially acknowledged the mass poisoning that has killed at least six tourists, pledging it would bring perpetrators to justice

The victims were an American, two Danes, two Australians, and a Brit. Australia's prime minister called the ordeal "every parent's very worst fear."

Six travelers have died from suspected methanol poisoning in Vang Vieng, Laos. Most of these incidents occur in Asia, according to Doctors Without Borders.

Tourists from the U.S., Australia, Denmark and the U.K. have died. A tourism police officer said a "number of people" had been detained in the case but that no charges have yet been filed.

The local governor visited the hostel in which some of the victims were staying, promising justice for those responsible.