Turkey continues to sweep through the country for coup plotters in the wake of the coup attempt over the weekend. Authorities say more than 7,500 have been detained, and nearly 9,000 officials have been suspended.

ALEXANDROUPOLIS, July 18, 2016 (Xinhua) -- Policemen escort Turkish military officers, who fled to Greece in a military helicopter on Saturday after the failed coup in Turkey, out of a court in Alexandroupolis, Greece, on July 18, 2016. The eight Turkish military officers who landed a Turkish military helicopter in Alexandroupolis in northern Greece on Saturday requested political asylum in Greece. (Xinhua/Marios Lolos)

Twenty-seven military officers were brought to court in Ankara, including former Air Force Commander General Akin Ozturk.

Turkish president Recep Tayyip Erdogan said official paperwork requesting for the extradition of U.S.-based Muslim cleric Fethullah Gulen will be filed within days.

The former ally of Erdogan is accused of being behind Friday’s failed coup. On Monday, the Turkish authorities launched an investigation into Incirlik Air Base, where a tanker plane had taken off to refuel at least one jet piloted by coup soldiers.