Saudi-led coalition strikes at Yemen capital after attacks on Aden blamed on Houthis

Saudi-led coalition warplanes struck targets in Yemen's Houthi-held capital Sanaa on Thursday in retaliation for attacks in the southern port city of Aden the previous day that took place as officials in a government backed by Riyadh arrived there.

The coalition accused the Houthi movement, which it has been fighting for six years, of staging the attack on Aden's airport and a second one on the presidential palace.

Thursday's coalition air strikes hit Sanaa airport and several other sites in and around the city, residents said. Loud blasts were heard and warplanes flew overhead for several hours, they said.

Houthi-run Masirah television said the planes hit at least 15 locations in different districts in the capital. There were no immediate reports of casualties.

Coalition air strikes have killed thousands, including many civilians, over the course of the war.

But they have been less frequent in recent years as the conflict has reached a stalemate, with the Iran-aligned Houthis controlling most population centers and President Abd-Rabbu Mansour Hadi's internationally recognised government - supported by Riyadh and Western powers - basing itself in Aden.

The main war has been eclipsed by a power-struggle between Hadi's government and southern separitists in Aden. Saudi Arabia has been trying to unite them to focus on fighting the Houthis.

At least 22 people were killed and dozens more wounded in Wednesday's attack on Aden airport, which took place just as members of Hadi's new cabinet arrived from Saudi Arabia. A second attack was made on the Maasheq palace, where they had been taken to safety.

A coalition statement said the alliance had downed an explosive-laden Houthi drone that was targeting the palace.

"The desperate, terrorist attack to target Maasheq palace confirms the responsibility of the terrorist, Iran-backed Houthi militia of the attack in Aden International Airport," the statement said.

There was no immediate reaction from the Houthis, who had earlier denied responsibility for the airport attack.

Aden has been mired in violence because of the rift between the separatists and Hadi's government, which has been based there after being driven from Sanaa by the Houthis in 2014.

The Southern Transitional Council (STC), which seeks independence for south Yemen, declared self-rule in Aden in April, triggering clashes with Hadi's forces and complicating United Nations efforts to forge a permanent ceasefire in the overall conflict.

The new cabinet unites the STC with Hadi in an effort to fulfil the Saudi aim of ending the feud.

Government officials were among the casualties in the Aden airport attack. Three International Committee of the Red Cross staff members were also killed, the organisation said.

Yemeni Prime Minister Maeen Abdulmalik said all members of the cabinet were "fine" and will remain in Aden despite the attack.