There has been much speculation over the past three years about Turkey’s supporting radical Islamist groups in an attempt to end Syrian President Bashar al-Assad’s regime. Turkish Prime Minister Recep Tayyip Erdogan’s government, however, has categorically denied these allegations.

Yet the release of a video, allegedly showing a “jihadist” crowd gathering in Istanbul on July 28 for the prayers marking the end of the holy month of Ramadan, has sparked controversy. The recording was released by takvahaber.net, described by Turkish media as an online portal close to the Islamic State (IS).

This website was the only source that reported the assembling of this crowd in Omerli, on the Anatolian side of Istanbul. The 26-minute recording includes a long preaching segment. “Let God make us fight the just war of jihad,” the preacher says. “May God help jihadists and those who are patient for victory. May God help their shots hit the mark.”

Although the Turkish parliament was in summer recess, Sezgin Tanrikulu, a main opposition Republican People’s Party (CHP) deputy, submitted a written query through the speaker's office, asking that it be answered by Interior Minister Efkan Ala. Asking the security establishment to confirm first whether this gathering took place in Istanbul and whether this was really a crowd affiliated with IS, Tanrikulu asked whether there were any IS camps within Turkey’s borders.