Hello,
I am traveling with Turkish Airlines from an EU country to Mauritius and back in December and the transfer is at IST. The flights are in one ticket and I am not planning to leave the transfer area in between. As an EU citizen, do I need to apply a transfer visa for either directions? It was a bit perplexing as Turkish Airlines had a warning banner when booking the tickets that I should check whether I need a visa for these transfers. Thanks!