"Turkish Airlines will resume its flights from Istanbul to Sulaymaniyah, seven flights a week", Mehmet Cahit Turhan was quoted as saying by the Turkish Anadolu news agency.
Relations between Baghdad and Erbil escalated after Iraqi Kurdistan held an independence referendum in September 2017. The central Iraqi authorities refused to recognise the vote and proclaimed it illegal.
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In addition, in March 2018 then Iraqi Prime Minister Haider Abadi issued a decree ordering that the ban on international flights to Iraqi Kurdistan be lifted after the Iraqi government re-established control over airports in Erbil and Sulaymaniyah. Turkey resumed flights to Erbil shortly thereafter, but the ban on flights to Sulaymaniyah remained in force.