Turkey has advised its citizens not to travel to Russia.
It comes amid the escalating tension between the two countries over Turkey's shooting down of a Russian military jet near the Syrian border.
Turkey's foreign ministry has said it is advising against non-urgent trips, following difficulties faced by Turkish visitors and residents in Russia.
This news follows reports that Turkish businessmen were detained in Russia for visa irregularities while attending a trade fair.
Turkish President Tayyip Erdogan has warned Russia “not to play with fire”.