An American man was among at least six tourists who were killed in a mass alcohol poisoning case in a popular tourist town in Laos.

The U.S., Australia and U.K. have issued warnings for travelers in Vang Vieng after several tourists died in a suspected methanol poisoning outbreak.

Details have been murky over the number of tourists affected and the possible source of the methanol-laced drinks.

Six tourists, including Australians and a British woman, died in Laos, likely from methanol poisoning. The U.S. State Department warns travelers about this risk. The Laos government is investigating the incident and expressed condolences to the victims' families.

An American citizen has died at a popular adventure spot in Laos where alcohol tainted with methanol has been blamed for a spate of poisonings in recent days.

The Lao government is “profoundly saddened” by the deaths of foreign tourists from drinking alcohol contaminated with methanol and pledged to

Officials say a young Australian woman has died after drinking tainted alcohol in Laos, and the U.S. State Department has confirmed an American also died in the same party town, bringing the death toll to four.

At least six tourists who traveled to Laos have died in recent days, prompting international alarm about the dangers of consuming alcoholic drinks that contain methanol.