Iraq’s Prime Minister Ali Al-Zaidi fired the operations commander of Maysan province and ordered an investigation after officials determined that attacks on Saudi Arabia’s East-West pipeline were launched from inside the Iraqi region bordering Iran. Saudi Arabia closed the pipeline on Friday as a precaution after several drones struck areas in Riyadh and Madinah, according to the Saudi Ministry of Foreign Affairs. The 7 million barrel-a-day route has become vital to Saudi oil exports since tanker traffic through the Strait of Hormuz nearly stopped during the Iran war, reaching full capacity earlier this year. The attacks come as Iraq faces pressure to restrain Iran-backed militias, while Houthi forces advance along Yemen’s Red Sea coast and continue missile and drone attacks on Saudi energy infrastructure. Greater Houthi control near the Bab al-Mandeb Strait could increase the risk to shipping and add pressure to elevated oil prices. Brent futures were little changed at about $105 a barrel after the Saudi statement, following a Thursday surge that brought prices close to $110. Iraq also closed the Shalamcheh border crossing with Iran as a precaution, Reuters reported, citing unidentified security sources.