Updated

Yemen's Houthi movement sharply escalated attacks on Saudi Arabia this week, striking Riyadh's King Khalid International Airport twice in two days, killing at least 12-13 people and injuring roughly 300, and hitting an Aramco building in Dhahran after a Saudi-led coalition strike on a Yemeni fuel depot. The Houthis also claimed to have hit a Saudi Eurofighter Typhoon jet over Saada, while the Saudi-led coalition said it intercepted a separate incoming drone over the kingdom's Eastern Province. Saudi officials vowed a 'serious response,' and analysts say the attacks mark the collapse of Riyadh's decade-long strategy of containing the Houthis while avoiding renewed war, posing a major test for Crown Prince Mohammed bin Salman. The escalation has wider fallout: the US embassy warned American personnel they need special authorisation to use Saudi airports, a Saudi tennis exhibition featuring Alcaraz and Djokovic was postponed, and Mecca-bound Umrah pilgrims face travel disruption. Reports also indicate the Houthis are developing longer-range missiles using Chinese-sourced components, deepening concern about the trajectory of the conflict.