A projectile struck terminals 3 and 4 of Riyadh's King Khalid International Airport on Sunday evening, killing a Pakistani resident and injuring 11 others. The attack came barely 24 hours after Saturday's far deadlier missile strike on the same facility, which killed 12 and wounded more than 300 — the highest single-attack toll in Saudi Arabia since the US-Israel war on Iran began in late February. India's embassy confirmed one of its nationals died Sunday from Saturday's injuries, bringing the five-day death toll to at least 13 confirmed killed across four separate strikes. The airport has been closed since Saturday. A witness aboard a taxiing aircraft reported the Sunday projectile hitting tarmac near parked planes at approximately 8:30pm local time, igniting a fire and forcing passengers to evacuate. Damage assessments and safety inspections were underway as of Sunday night. Thursday's earlier strikes had killed at least three Saudi citizens, including a pilot, according to the General Authority of Civil Aviation. The Houthis claimed responsibility for the strikes prior to Sunday's attack. The repeated targeting of a major civilian airport — Riyadh's primary international hub — represents a qualitative escalation in the Yemen conflict, demonstrating either improved missile accuracy or degraded Saudi air-defense capability. The question analysts have been circling — why are Houthi missiles breaking through Saudi defenses — now carries body counts. The strikes are pulling the United States toward direct military involvement. President Trump said he is weighing whether to join the fight against the Houthis and stated his intent to speak with Saudi Crown Prince Mohammed bin Salman, who is seeking American help. As of Sunday, there were no signs Trump had followed through on that call. The strategic calculus is tangled. US intervention risks prompting the Houthis to shut commercial shipping through Bab al-Mandeb, the narrow strait off Yemen's coast that serves as a crucial alternative to the Strait of Hormuz for Gulf oil exports. The Houthis seized key positions along the strait last month; the Saudi-led coalition, backing Yemen's internationally recognized government, has been attempting to retake them. The economic ripple effects are already in motion. Escalation pressure on both Bab al-Mandeb and the broader Gulf shipping corridor threatens global oil supply chains at a moment when markets are already jittery. Each strike on Riyadh tightens the feedback loop: Houthi attacks demonstrate Saudi vulnerability, Saudi vulnerability increases the demand for US intervention, and the prospect of US intervention gives the Houthis incentive to escalate further before that intervention materializes. What began as a proxy conflict in Yemen has become a direct test of Saudi air sovereignty and a potential trigger for wider regional war. The airport remains closed, the death toll is climbing, and the diplomatic window is narrowing by the day.
