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

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.

Simone White, 28, from Orpington, Kent, was one of a number of people taken to hospital after the incident in the popular backpacking town of Vang Vieng last week