KABUL: Several rockets exploded in and around Kabul airport on Wednesday hours after US Defence Secretary James Mattis and NATO Secretary General Jens Stoltenberg arrived in the Afghan capital on an unannounced visit, police said.

There were no reports of casualties or damage and Mattis was not near the airport when the rockets exploded.

Reports in the Afghan media stated that around 20-30 rockets were fired at Hamid Karzai International Airport.

The airport was evacuated following the attack and all flights stood suspended, said officials.  

No group has claimed responsibility for the attack as yet.