A planned visit by Prince Andrew to Croatia later this week is under review, the Foreign Office says.
A spokeswoman says the review will determine whether or not this is a suitable time for a member of the Royal family to visit the country.
Prince Andrew is due in the Balkan country from Wednesday to Friday.
A British embassy official in Zagreb said: "The final decision on whether Prince Andrew will come to Croatia as scheduled or not will be given at the beginning of the week, most probably on Monday."
It's not known if a possible change to plans is in response to Croatian reluctance to hand over wanted war crimes suspect General Janko Bobetko to the international war crimes tribunal in the Hague.
In Sunday's edition of the Croatian daily Jutarnji List the paper claimed the cancellation of the visit would be the start of a campaign of western sanctions against the country because of the rejection of the extradition request.
Croatia claims there is no need to extradite the general as he did not commit any war crimes and had led a "legitimate military operation to free occupied Croatian territory".
The Prince is due to open a new British Embassy building in Zagreb on Wednesday - and also to inspect the Croatian naval base of Lora in the Adriatic port of Split on Thursday.
He's also scheduled to meet Croatian President Stipe Mesic and Prime Minister Ivica Racan.