Saudi Arabia said three people, including a pilot, were killed in Houthi attacks on Riyadh's international airport on Thursday, marking an escalation in the Yemen conflict. The Iran-backed Houthis have expanded their offensive across the Red Sea, targeting Saudi oil facilities, transport hubs, and civilian infrastructure despite a Saudi-backed counteroffensive. The attacks disrupted flights and forced diplomatic staff to shelter in place, while Riyadh rejected ceasefire talks until Yemen's government recovers lost territory.