The alleged attack took place on the island of Koh Tao, a spot that draws divers from all of the world.
The holiday spot made headlines in 2014 when the bodies of British backpackers Hannah Witheridge, 23, and David Miller, 24, were found on one of the island’s beaches having been bludgeoned to death.
Two Myanmar migrant workers, Zaw Lin and Win Zaw Tun, were found guilty in 2015 of killing the pair.
Thailand remains a popular destination for travelers on a budget and tourism is a vital part of the economy, but a spate of crimes against visitors in recent years has raised questions about tourist safety in the country.
In the latest case, police said an 18-year-old backpacker, whose name has been withheld, claims she was drugged and raped by a French tourist on April 4 on Koh Tao.
Thai police identified the suspect as 26-year-old French national…