Greece is the latest country to tighten travel restrictions to restrict the flow of people and goods to the country.
Greece said Sunday that it will temporarily ban most flights to and from Turkey, with a limit of 250,000 travelers.
The country also said it will impose travel restrictions on all flights to Israel, a major Israeli ally.
The new travel restrictions come days after Greece said it would suspend imports of wheat and other agricultural products to Turkey, amid escalating tensions over the crisis.
Greece has had no diplomatic relations with Turkey since a coup in July.
It also banned imports of oil, which has been a key component of Turkey’s exports to Europe.
Greece and Turkey have been at loggerheads over the course of the crisis, with the Turkish government blaming Greece for the refugee crisis, while Greece blames Turkey for a lack of food and fuel.
The EU and the U.S. have said they want Greece to open its borders to allow for more migrants to arrive and resettle.
The U.N. refugee agency says the current situation in Greece is “a humanitarian crisis.”