A drone attack hit near US forces stationed at Erbil International Airport in Kurdistan Region of Iraq on Saturday, Kurdish security officials said.
Witnesses said they heard at least six explosions in the area.There were two different reports on the attack from local authorities.
The internal security service for Kurdish region initially said three rockets had hit near the airport.
A second statement by the Kurdish counter-terrorism force said the attack had been carried out by explosive-laden drones.
There were no immediate reports of casualties.