Turkey captain Arda Turan has led condolences from the world of football after Istanbul was hit by a terror attack on New Year's Eve.
At least 39 people were killed when a gunman opened fire on a nightclub in the Ortakoy region of the city.
Istanbul was also affected by a bomb attack outside of Besiktas' stadium in December, which killed 44 people.
Arda posted on Twitter: "Yes, we are suffering, but we will come together, stand as one and we will not let terrorism prevail. My condolences to you, my Turkey."
Besiktas added in a statement: "Terrorists who previously attacked our soldiers and police forces, have committed a vulgar attack, this time on civilians.