Houthi military spokesman Yahya Saree announced that Houthi forces struck the Saudi Defense Ministry building in Riyadh with a ballistic missile, reporting a direct hit, and separately targeted the Ras Tanura refinery with a ballistic missile that ignited a fire [1][8][11]. Saree also announced a drone strike on Abha International Airport and claimed attacks on military transport planes at Najran airport and Khamis Mushait airbase [4][11]. Houthi forces additionally claimed strikes on Riyadh airport, oil pumping stations, Aramco facilities in Yanbu, and King Fahd airport in Dammam [2][27][28]. The Saudi-led coalition stated that its air defenses intercepted three ballistic missiles fired toward the Eastern Province and four drones headed toward southern regions, with no casualties [2][13]. Saudi Civil Defence reported that fragments of two intercepted ballistic missiles fell in Riyadh, causing material damage to a building, an under-construction project, and a vehicle [4][11]. Coalition spokesman Turki al-Maliki said air defenses destroyed the missiles and described the Houthis as a militia terrorizing civilians [13][2].
Egypt's parliament approved authorizing President Abdel Fattah el-Sisi to send forces to Saudi Arabia, with Sisi vowing to do "todo lo necesario" (everything necessary) to protect the kingdom [10][17][21]. Egyptian political thinker Mostafa El-Feki and retired Major General Mohamed El-Shahawy framed the authorization as defensive Arab collective security grounded in constitutional Article 152, not participation in Yemen's war [3]. Senate member Hussein Abu Al-Atta called the authorization a deterrence message to anyone threatening regional stability and said Saudi and Gulf security is integral to Egyptian national security [15]. Sisi said any Egyptian military support would be limited to defending Saudi territory and would not include launching an attack on Yemen [28][3]. The Arab League condemned Houthi attacks on Yemeni state institutions and civilian facilities, called them a grave violation of international humanitarian law, and welcomed the 15 October Security Council presidential statement [30]. Pakistan's Foreign Office condemned the Riyadh airport attack as terrorism and reaffirmed its commitment under the Makkah Joint Defence Agreement, with Defence Minister Khawaja Asif stating that Pakistan and Türkiye both have a presence in theatre while only Saudi troops are in combat [39].
Houthi Political Bureau member Mohammed Ali al-Houthi called Egypt's parliamentary authorization a declaration of war against Yemen and condemned the Makkah defence pact as aggression against Iran [5]. "It is truly remarkable that while these people go to discuss what they call 'peace in the region', Egypt and its parliament declare support for the so-called defence of the Kingdom of Saudi Arabia, and in doing so, declare war against the Republic of Yemen," he said [5]. He warned Egypt against participating in a war that would exhaust its capacities and serve Israeli plans against the Sinai [10][17].
Sanaa-aligned voices inverted the aggressor-victim framing [22][26][14]. Yemen's Foreign Ministry accused Saudi Arabia of war crimes, genocide, and crimes against humanity since March 2015 [22]. The Yemeni Center for Human Rights counted 2,323 air and missile strikes since 3 September and 427 civilian casualties, citing strikes on a girls' school and health centre in Jabal Habashi [26]. Saudi fighter jets bombed al-Mokha and a district in Amran province, including seven strikes on Harf Sufyan and four on a security headquarters in al-Mokha [22]. Houthi forces accused Riyadh of reneging on prior commitments to pay salaries and reconstruction, which they said caused attacks to resume [14].
Parallel to the military exchanges, Saudi Defence Minister Khalid bin Salman, Pakistan's army chief Asim Munir, and Turkish intelligence chief Ibrahim Kalin met Iranian officials including President Masoud Pezeshkian and SNSC Secretary Mohsen Rezaei in Tehran [6][18]. Saudi Arabia's Foreign Ministry described the visit as part of efforts to reduce tensions and support Qatar- and Pakistan-led mediation [6]. Rezaei described "a new and positive atmosphere" in the region [6]. A reported Saudi proposal, mediated by Iran, would pay $1 billion into Houthi-controlled areas for salaries and reconstruction in exchange for halting attacks on Saudi facilities [14]. The four countries agreed to continue dialogue for regional peace and security [2].
Private geospatial intelligence firm Aurora Geospatial Intelligence reported that Russian government and military satellites were active over Saudi targets before and after 40 missile and drone attacks from 1 July to 19 October, with founder Nawaf Obaid describing a 100 percent match between satellite activity and attacks [20][33]. A senior Houthi official confirmed to the Associated Press that Iranian advisers in Yemen passed on intelligence obtained from Russian satellites for target selection [33]. Saudi Deputy Minister Rayed Krimly said Iran and the Houthis receive intelligence from elements in Russia and China [20][34]. Russian Foreign Ministry spokesperson Maria Zakharova said Moscow received neither requests nor evidence from Riyadh: "Таких обращений от саудовцев к нам не было, никаких „доказательств“ никто не предоставлял, в том числе ввиду их отсутствия" (No such requests came from the Saudis, no "evidence" was provided by anyone, including due to its absence) [34]. Sergei Lavrov publicly condemned Houthi strikes on Saudi infrastructure in early September [33].
The Houthi movement also launched a media campaign using Jeffrey Epstein documents, satirical videos, and social media to target Crown Prince Mohammed bin Salman [9]. Analyst Oral Toğa of the Iran Studies Center said the campaign aims to discredit Riyadh, align it with the US and Israel, and convert military pressure into negotiating leverage, while cautioning that the Epstein files do not by themselves prove complicity [9].
Rights groups and UN agencies documented civilian harm on both sides. SAM for Rights and Liberties called for independent investigations into both Houthi shelling of Taiz neighborhoods and the Riyadh airport attack [25]. Saudi Arabia's General Authority of Civil Aviation announced that the 10 October attack on King Khalid International Airport killed 12 and injured 309 [25], a toll Arab News reported as 13, within an AFP tally of 22 airport deaths in October [29]; an attack on King Fahd International Airport in Dammam killed two and injured eight [29][28]. The International Organization for Migration reported 217,303 people displaced as of 12 October, with Taiz governorate hosting about 55 percent [25]. Djibouti's Minister of Economy Ilyas Moussa Dawaleh said 1,400 people crossed the strait to seek refuge in Djibouti in a single 24-hour period [37]. Indian Ambassador Shri Vipul condemned the attacks and said attacks on civilian and critical infrastructure must cease immediately [29].
The reported strike on Ras Tanura, a facility with 550,000 barrels-per-day refining capacity that Saudi officials have not confirmed, moved oil markets, with Brent reported at $116.50 after the fire [31][1], though German-language coverage recorded Brent falling 1.47 percent to $114.01 despite the escalation [7]. South Korea's government convened an emergency meeting with refiners after the East-West pipeline was hit and said more than 90 percent of September–October crude volumes are secured [36]. Italian coverage quantified national exposure at 368,000 tonnes of Saudi crude, 7.6 percent of national imports [38]. Saudi Energy Minister Abdulaziz bin Salman warned that there can be no energy future for anyone without energy security for everyone [38].
Iranian officials argued that Washington cannot provide security guarantees and that regional security must be built among regional states [19]. Omani Foreign Minister Badr al-Busaidi urged a Gulf-Iran non-aggression pact, saying "There is no such fundamental antagonism" between Arabs and Persians [19]. The US Embassy in Riyadh warned non-emergency staff to leave Saudi Arabia [19][28]. US President Donald Trump defended the war with Iran and dismissed the earlier ceasefire: "We did a little ceasefire, which I never liked very much" [19].
The Tehran talks participants agreed to continue dialogue, with Iran stating its nuclear program was not discussed [18]. Saudi-backed Yemeni forces claimed 1,276 operations against Houthi positions in 24 hours [19]. Houthi military spokesman Yahya Saree warned Saudi shipping against transiting the Red Sea and announced an upcoming large-scale military operation [37].