The internal security service for Iraq’s autonomous Kurdish region, of which Erbil is the capital, initially said three rockets had hit near the airport.
The attacks were reported early on Sunday at the troops’ base at the airport.
A second statement by the Kurdish counter-terrorism force said the attack had been carried out by explosive-laden drones, according to Reuters.
There were no immediate reports of casualties. Witnesses said they heard at least six explosions in the area.
The airport in Erbil, the capital of the autonomous Kurdish region, has come under attack several times in the past year, including by drones carrying explosives.
Iraq’s Sabereen News outlet, affiliated with the Arab country’s resistance groups, said a “massive explosion” rang out across the area during the incident, Press TV reported.
The area’s sirens went off and smoke was seen billowing out, it added, and also reported that a considerable military and security buildup had followed the strikes.
Sky News Arabia said the airport had been shut off to all flights for fear of further attacks.
A source inside the US-led coalition in Iraq told Kurdistan 24 that the incident had activated the C-RAM (counter rocket, artillery, and mortar) system at the airport.
No person or party has yet claimed responsibility for the strikes.
Iraq’s resistance groups have, however, significantly increased their attacks on American interests in the country since early last year, when a US drone attack targeted the capital Baghdad.
The attack led to the martyrdom of senior Iranian and Iraqi anti-terror commanders, Lieutenant General Qassem Soleimani and Abu Mahdi al-Muhandis.
Both commanders had played an instrumental role in the defeat of the terrorist group, Daesh, which the US has been using as an excuse for prolonging its presence in Iraq.
Following the American drone attack, the Iraqi parliament voted overwhelmingly in favor of a law mandating full withdrawal of all foreign forces from the country’s soil.