CHARIKAR, Afghanistan — Rockets fired by militants Saturday struck a main US-NATO base in Bagram district of Afghanistan’s Parwan province, to the north of Kabul, with no immediate report on casualties or extent of damage, a provincial government spokesperson confirmed.

“Five rounds of rockets were fired onto Bagram Airfield from an abandoned truck parked in Qalandar Khil locality of Bagram district roughly at 5:50 am local time Saturday,” Wahida Shahkar told reporters via a text message.

She said seven rockets failed to be fired and were defused by Afghan security forces.

Further details about the incident are still forthcoming.

The Bagram Airfield, some 50 km north of the Afghan capital of Kabul, has been serving as a main US and NATO military base in Afghanistan over the past 19 years.

No group has claimed responsibility yet for the attack.