​ EU foreign policy chief Federica Mogherini expressed on Sunday condolences over the deadly terror attack in Istanbul.

Axar.az reports that, EU foreign policy chief Federica Mogherini expressed on Sunday condolences over the deadly terror attack in Istanbul and noted that the work on preventing such tragedies would be continued.

The nightclub Reina in the Besiktas district was reportedly attacked by a man in a Santa Claus costume, who was speaking Arabic. The attacker is said to have opened fire from a Kalashnikov assault rifle.

According to the Vasip Sahin, governor of the Istanbul province, at least 35 people were killed and 40 injured as a result of the attack. NATO Secretary-General Jens Stoltenberg also expressed on Sunday condolences over the deadly terror attack in the Turkish city of Istanbul.