Four nations — Pakistan, Saudi Arabia, Egypt, and Türkiye — have voiced opposition to Houthi strikes on Saudi territory, among them attacks directed at King Khalid International Airport in Riyadh, while also affirming that the Kingdom holds the right to pursue defensive countermeasures against those threats.

In a communiqué released on Sunday, the four-member R4 Group stated that the attacks ran contrary to international law and posed a threat to both the sovereignty and territorial integrity of Saudi Arabia. The statement described the strikes as posing a direct threat to the nation's security, its broader stability, and the safety of civilians.

The bloc demanded an immediate, unconditional halt to the strikes, placing responsibility for civilian casualties, injuries, and damage to non-military infrastructure on the Houthi movement, along with accountability for any broader threat to stability at the regional and international level. The statement went on to affirm the group's solidarity with Saudi Arabia and its backing for all lawful measures the kingdom pursues to counter the strikes, neutralise the sources behind them, and prevent their recurrence. Those nations stipulated that any steps taken by Riyadh conform with both the United Nations Charter and the framework of international law.

Drone and missile strikes on targets inside Saudi Arabia — including hits near King Khalid International Airport in Riyadh that left people wounded and airport infrastructure out of service — formed the backdrop to the formal joint condemnation that followed.

Thirteen people lost their lives and more than 300 others sustained injuries in a strike that took place on Saturday, according to authorities in Saudi Arabia. One person died and eleven were injured when an attack took place on Sunday, with aviation officials noting afterward that facilities outside military control had shown themselves to be vulnerable to such incidents. Projectiles headed toward coalition-held positions were said to have been neutralised by air-defence units operating under the alliance's command during the most recent round of hostilities.

Strikes on airport facilities have put the protection of civilian aviation infrastructure under scrutiny, as armed hostilities involving the Houthis continue to place pressure on stability across the region. Even as tensions in the region mounted, the Saudi capital continued welcoming large-scale gatherings on the world stage, among them a conference centred on energy.

In a formal statement, the R4 Group held that no justification — under any circumstances — could be offered for the attacks, adding that the fallout reached past Saudi Arabia's borders and posed a threat to stability across the broader region and internationally.

Rooted in Yemen, the Houthis function as both a political organisation and a fighting force, holding Sanaa and broad stretches of the country under their administration. Backed by Iranian support, the group has spent years in an armed confrontation with Yemen's internationally recognised government and the Saudi-led coalition that entered the country's civil war in 2015. Fighting in Yemen has at times crossed into neighbouring territories.

Drone and missile strikes directed at Saudi territory have been among the tactics the Houthis have employed over time, alongside operations targeting commercial and other vessels moving through the Red Sea and Gulf of Aden — activity that intensified following the start of the conflict between Israel and Hamas in October 2023.

Talks between Saudi Arabia and the Houthi movement had been progressing toward reduced hostilities, with negotiators pursuing a path to ending the war in Yemen. Fresh attacks carry the potential to set back those diplomatic gains and draw more parties into the conflict. Attacks on airport facilities have drawn attention to how strikes can affect non-military infrastructure.

Four nations — Saudi Arabia and three regional partners acting under the R4 Group banner — have aligned behind a shared diplomatic stance, putting on record that ongoing hostilities carry the potential to destabilise peace and security across a far wider geographic area than the fighting itself currently occupies. The joint statement includes an endorsement from all four countries of Saudi Arabia's right to take protective action against the attacks, deter any repetition, and prevent their recurrence.

The communiqué does not point to a coordinated military intervention or any agreement among the four nations to take part in the conflict. The statement expresses backing for Riyadh and endorses measures carried out within the bounds of international law. The R4 Group has called on the movement to bring an end to strikes on Saudi territory and civilian infrastructure, framing full accountability as the basis for any resolution.