Yemen's Iran-aligned Houthis attacked Aden International Airport with ballistic missiles and explosive-laden drones early on Wednesday, Yemen's Transport Ministry said, as fighting intensified across several fronts, while ​the Saudi-led coalition said it had intercepted and destroyed a Houthi ballistic missile ‌north of the Saudi capital Riyadh.

One missile landed near the airport runway minutes before a flight from Cairo was due to land, the ministry said. Authorities cancelled the landing and diverted the aircraft to ​Jeddah, while two planes on the runway were moved away from the area ​over fears of further strikes, it added. There was no immediate comment ⁠from the Houthis.

Aden International Airport is the main international gateway for parts of Yemen outside ​Houthi control.

The Saudi-led coalition backing Yemen's internationally recognised government said it had intercepted and ​destroyed a Houthi ballistic missile north of Riyadh. It said it was tracking the launch platform over Houthi-controlled Sanaa and would destroy it, but gave no details of casualties or damage.

Houthi military spokesperson Yahya Saree said in ​a statement that the group had targeted King Khalid International Airport in Riyadh with ​several drones. There was no immediate Saudi confirmation of an attack on the airport.

The attacks came as ‌fighting ⁠intensified on several fronts in Yemen after Saudi-backed government forces launched a counteroffensive against the Houthis, who have made territorial gains along the country's Red Sea coast in recent weeks.

Yemeni government forces, with Saudi-led coalition air support, launched a lightning offensive this week to retake the ​Red Sea coast around ​the strategic Bab el-Mandeb ⁠Strait and the city of Mocha, pushing the Houthis out of areas they had seized last month.

Earlier on Wednesday, the Saudi-led coalition said ​it had intercepted and destroyed a Houthi ballistic missile launched towards ​the southwestern Saudi city of ⁠Khamis Mushait, Saudi state television reported.

In a separate statement, Saree said the Houthis had attacked Abha International Airport and an airbase in Khamis Mushait with ballistic missiles and drones. It ⁠was not ​immediately clear whether this was linked to the missile ​the coalition said it had intercepted near Khamis Mushait. Saudi authorities did not immediately confirm an attack on Abha ​airport.