High-level Turkish officials speaking anonymously have claimed that Turkish security and intelligence organizations are dealing heavy blows to Islamic State cells and networks in the country.

The Turks have been rounding up foreign fighters who, according to their security organizations were plotting further terrorist attacks inside the country.

Since the New Year’s attack by IS in Istanbul which took 39 lives, Turkey has been dealing heavy blows to this extremist organization,” the official said. “Turkey is part of the international anti-IS coalition. We are very determined as always and continue to fight against IS and all other terrorist organizations.”

Last week, Turkish security forces stormed a suspected IS cell in the Anatolian province of Konya, killing at least five IS fighters.

In recent weeks,Turkish special police forces have detained a total of 233 IS suspects in 29 provinces, according to Turkish media reports.

Separately, in early July, Turkish security forces also detained 29 suspected IS members in Istanbul.

The majority of the suspects, who were detained in raids carried out across the country, were foreign nationals and were allegedly preparing to stage attacks in Turkey, according to Turkish media reports.

Turkey’s interior ministry recently published a report listing the number of foreign nationals in IS ranks in the country. Tunisians top the list followed by citizens of Saudi Arabia, Kazakhstan, France, Russia and Belgium.