At least six people have been killed in a suspected drone attack on an airport near the city of Sulaymaniyah in the semi-autonomous Kurdish region in northern Iraq, official sources have told Al Jazeera. Al Jazeera's Mahmoud Abdelwahed, reporting from the Iraqi capital Baghdad, said that the Arbat airport, located 50km (30 miles) to the east of Sulaimaniya, has been used by the "anti-terrorism" combat apparatus that is part of Sulaymaniyah security forces. "Whether all the victims are from the anti-terrorism apparatus remains to be known," he said. The airport was used for agricultural purposes in the past. Two members of the Kurdish security forces were wounded in the attack and were rushed to a military hospital in Sulaimaniya under tight security, a police source told Reuters.