Houthi forces announced missile and drone strikes on Riyadh and Saudi Aramco facilities in the Red Sea port city of Yanbu on September 19, marking the first direct targeting of the Saudi capital since fighting resumed in July [1][5][24]. The announcement followed overnight air-raid alerts across Riyadh, explosions near King Khalid International Airport, and a fire at a fuel tank bearing the Aramco logo that disrupted flights [5][8][26]. The strikes came as Iran's IRGC Navy asserted that the Strait of Hormuz is closed and under its control, with transits in prohibited zones at risk of striking mines [40].
Houthi military spokesman Yahya Saree said the Yemeni armed forces carried out two successful operations using ballistic and cruise missiles and drones, targeting “sensitive sites” in Riyadh and Aramco facilities in Yanbu, in response to what he called Saudi “criminal attempts” to strike Sanaa [1][9][15]. The Houthis cited hundreds of Saudi airstrikes — Saree referenced over 450 in one statement and 732 in another — as the trigger for the attacks [24][12]. Houthi leader Abdul-Malik al-Houthi denied Saudi accusations that the group had targeted Mecca with a drone [3][23], with the Houthis calling the allegation a “worn-out lie” [8][9]. Muhammad Mansur, an official in the Houthi-run information ministry, told ANSA: “La nostra è una resistenza armata legittima di fronte alla prolungata aggressione saudita” (Our struggle is legitimate armed resistance against prolonged Saudi aggression), and questioned what Italian aircraft were doing in Saudi Arabia [20].
The Saudi-led coalition stated that Royal Saudi Air Defence intercepted and destroyed a ballistic missile fired toward Riyadh at dawn and thwarted attempted strikes on civilians and civilian infrastructure in Bisha, Taif, Farasan and Yanbu [31][33][5]. Coalition spokesman Turki al-Maliki described the attacks as “deliberate terrorist and hostile behavior” targeting civilians and said the coalition reserves the right to take appropriate measures under international humanitarian law [31][33][8]. Saudi Arabia had accused the Houthis of targeting Mecca, calling it a “cowardly terrorist attack” on Islam's holy city [9][13]. Saudi authorities did not confirm the Houthi assertions of strikes on Aramco facilities [15].
The UN Security Council condemned the Houthi attacks “in the strongest terms,” citing strikes on civilian and energy infrastructure that injured civilians including women and children, and demanded the Houthis “immediately cease their military escalation” [22][9][7]. UN Secretary-General Antonio Guterres and GCC Secretary-General Jasem Mohamed Albudaiwi jointly condemned the targeting of civilian objects as a threat to regional peace [4]. EU foreign policy chief Kaja Kallas called the Houthi attacks “unacceptable” and said they sabotage the global economy, announcing that the EU's Operation Aspides had raised its alert level [2]. Jordan expressed “absolute solidarity” with Saudi Arabia [21], while Turkish Foreign Minister Hakan Fidan said the kingdom should be “kept out” of the broader Iran-US conflict and offered support under a trilateral defense pact with Pakistan [28][14].
The IRGC Navy claimed the supertanker Algaya struck mines after entering a prohibited zone south of Hormuz and asserted the strait was closed and under its control [40]. US CENTCOM rejected the IRGC's mine claim, stating the vessel was hit by a drone and calling the Iranian assertion an effort to intimidate shipping [40]. CENTCOM commander Admiral Brad Cooper said the strait's primary transit lanes had been cleared of mines and that Gulf allies shipped more than a billion barrels of crude through the waterway in recent months [6]. The Houthis declared a naval blockade against Saudi Arabia in July, insisting that shipping other than Saudi vessels faces no threat [32][30]. Yemeni Foreign Minister Afrah ez-Zube stated that an armed group controlling territory militarily does not gain the right to manage maritime navigation [12]. An Iranian commercial vessel was also struck near Qeshm island, killing one and wounding three, according to the Qeshm governor [39].
Commodity vessel transits through Hormuz fell to three ships on Wednesday, down from 12 the day before and well below the 10-day average [36]. Three major Japanese shipping firms halted Hormuz transits after Iran's closure declaration, with Mitsui O.S.K. Lines saying it was strengthening 24-hour monitoring with crew and cargo safety as the top priority [47]. Saudi Arabia began canceling oil exports to Europe after Houthi drone attacks on the East-West Pipeline struck on September 11, which will be largely out of service for weeks [45][35]. Kpler data showed Saudi shipments through Bab al-Mandab had decreased since July [13]. JP Morgan said it did not know how to model the war's final outcome on oil prices [16], and Brazilian outlet Terra reported fears the barrel price could exceed $150 if the European supply cut is prolonged [45].
UN agencies reported that renewed fighting displaced more than 112,000 people inside Yemen, with nearly 3,000 crossing the sea to Djibouti [37][29]. UNHCR said reception capacity in Djibouti was “rapidly diminishing” and the operation was severely underfunded [38]. IOM mission chief Abdusattor Esoev warned that resources were “very, very, very limited” and stocks would be depleted soon, with 22 million Yemenis needing aid [37]. A Reuters investigation documented how Red Sea tensions pushed fish off Yemeni tables, with prices rising roughly 100 percent and fishermen avoiding deep waters after attacks [43].
Yemeni civil-society voices and analysts argued that the rout of anti-Houthi forces on the western coast stemmed from collapsed coordination, low morale and possible payoffs rather than Houthi military superiority [11]. Taiz University professor Abdulwahab al-Awaj said the collapse was “a warning sign of a breakdown in coordination and trust” that the Houthis exploited more than any decisive military advantage [11]. Mocha activist Abdu Mukabib described the withdrawal as “cowardly and shameful,” saying it was not from weakness or lack of equipment [11]. Anti-Houthi commanders offered a different account: the National Resistance Forces said it made a “necessary tactical retreat” after 500 soldiers died to prevent encirclement [11], and Yemen's Presidential Leadership Council head Rashad al-Alimi downplayed the defeats as incidental, while council member Sultan al-Arada said forces are regrouping [35]. Sana'a Center analyst Yasmeen al-Eryani said the Houthis are “determining the timelines and the levels of the escalation” and that containing the group may be more realistic than defeating it [21].
Diplomatic channels remained active across multiple capitals. Iran's Supreme National Security Council secretary Mohsen Rezaei said Tehran wants the Saudi-Houthi war to end and conveyed conditions to mediators for resuming talks with Washington, including ending the war on all fronts, releasing frozen Iranian assets and ending the US naval blockade [6][14]. Saudi Arabia proposed a two-week ceasefire to the Houthis through Oman and asked China to help restrain the group, with Beijing pressing Tehran through special channels [27]. US President Donald Trump said the United States is holding talks with the Houthis on a peace agreement [27], while rebuffing Saudi requests for direct military intervention and approving a $24.3 billion sale of 48 F-35 fighter jets to the kingdom [9][32]. Chinese Foreign Minister Wang Yi urged parties to take effective measures to reopen Hormuz, and Iranian Foreign Minister Araghchi said Iran had reached a plan with Oman to open the strait [46].
Saudi Arabia has issued and cleared air-raid alerts for Riyadh [42]. Iran's Foreign Ministry said Tehran will attend a meeting with Persian Gulf Arab states in Oman to discuss the future of the Strait of Hormuz, while a senior Iranian official downplayed the likelihood of a major agreement [39]. The Saudi-led coalition says it reserves the right to respond under international humanitarian law [31].