The Foreign, Commonwealth and Development Office (FCDO) has updated its travel advice for Turkey, warning Britons about the risk of counterfeit banknotes.Tourists have been warned about a surge in counterfeit US dollar bills in Turkey, with banks and money exchanges now refusing to accept $50 and $100 notes across the country.The FCDO stated: “Banks and money exchanges may not accept $50 or $100 US dollar bills, due to a reported surge in counterfeit banknotes of these denominations in Turkey.”Travellers were advised to avoid accepting $50 and $100 bills where possible when visiting the Middle East holiday destination.Holidaymakers should heed the FCDO’s latest guidanceGETTY IMAGESTherefore, Britons planning trips to Turkey should consider carrying smaller US dollar denominations or alternative payment methods.Turkey is a popular holiday destination famous for its rich culture and history, delicious cuisine, idyllic beaches, picturesque scenery and diverse experiences, from hot air balloon trips to vibrant bazaars.But before visiting the beautiful spot, it’s important to consult the FCDO’s latest travel guidance. This includes information on warnings and insurance, entry requirements, safety and security, regional risks, health and getting help.As well as counterfeit banknotes, Britons in Turkey should be aware of the risk of crime, including street robbery and pickpocketing, drink and food spiking, counterfeit alcohol, sexual assault and taxi safety.British tourists have been issued a stark safety warning, as FCDO data revealed that 42 cases of sexual assault, including rape, were reported to British consular staff in 2023.Most incidents occurred during summer holidays in coastal tourist areas, prompting heightened concern from UK authorities.The FCDO warned that sexual assaults were frequently committed at night by individuals whom victims had met during daytime activities, including hotel and spa workers.Particularly concerning are reports of sexual attacks on minors who were using toilet facilities unaccompanied.The FCDO also highlighted serious concerns about drink and food spiking, warning tourists to be wary of strangers offering beverages or inviting them to restaurants.LATEST DEVELOPMENTSTurkey is a popular destination among British holidaymakersGETTY IMAGESDeaths of tourists have been linked to counterfeit branded alcohol, thus visitors are advised to seek advice from tour operators or the Turkish authorities if concerned.The FCDO also advised tourists to be vigilant with personal belongings in major tourist areas of Istanbul, where street robbery and pickpocketing are common.For safer travel, tourists are strongly advised to use only registered taxis and note vehicle registration numbers before entering. App-based taxi services are widely available as a safer alternative.Before going abroad, Britons should always consult the FCDO’s latest guidance on their chosen destination.Holidaymakers have been given essential new guidance for an Asian holiday spot and “may be refused entry” if they do not comply.