Duong Duc Toan, the manager of Nana Backpack hostel displays a bottle of vodka, in the bar of the hostel in Vang Vieng, Laos, Tuesday, Nov. 19, 2024. (AP Photo/Anupam Nath)

VIENTIANE, Laos (AP) — An Australian teenager has died after drinking tainted alcohol in Vang Vieng, Laos, Australia's prime minister said Thursday, and the U.S. State Department confirmed an American also died in the same party town, bringing the death toll to four in the poisoning incident.

Australian Prime Minister Anthony Albanese told Parliament that 19-year-old Bianca Jones had died after being evacuated from Laos for treatment in a Thai hospital. Her friend, also 19, remains hospitalized in Thailand.

Meantime, the State Department confirmed to The Associated Press that an American tourist had also died, but said it had no further comment out of respect to the families.

"This is every parent's very worst fear and a nightmare that no one should have to endure," Albanese told lawmakers, adding "we also take this moment to say that we're thinking of Bianca's friend Holly Bowles who is fighting for her life."

The two Australian women fell ill on Nov. 13 after a night out drinking with a group. They are believed to have consumed drinks tainted with methanol, which sometimes used as the alcohol in mixed drinks at disreputable bars and can cause severe poisoning or death.

New Zealand's Foreign Ministry said Thursday one of its citizens was also unwell in Laos and could be a victim of methanol poisoning. Denmark's Foreign Ministry, when asked about the poisoning incident, said Wednesday that two of its citizens had died in Laos but would not provide further details.

"We have updated our travel advisory for Laos to note that there have been several cases of suspected methanol poisoning after consuming alcoholic drinks," New Zealand's Foreign Ministry said. "Travelers are advised to be cautious about consuming alcoholic beverages, particularly cocktails and drinks made with spirits that may have been adulterated with harmful substances."