“Alcohol and drugs can make you less alert, less in control and less aware of your environment.”

But tourists should also be careful when staying in paid accommodation, as possessions could be stolen.

The FCDO said: “Passports have been stolen from rented villas, even when they have been kept in the villa safe.

“This is a particular problem in Didim, Kas, Kalkan and the Fethiye/Hisaronu/Ovacik areas.”