The conflict has opened a second front in the Middle East after the United States and Israel attacked Iran, adding to global uncertainty and turmoil in energy markets.
The Houthis, an Iran-backed militia in Yemen, said they had downed a Saudi jet, while Saudi authorities accused the group of firing a drone near Mecca. The Houthis denied doing so.
The two sides traded accusations of attacks as fighting inside Yemen remains fierce. The escalating conflict threatens to further destabilize the Middle East.
A drone attack from Iraq forced Saudi Arabia to close its East-West pipeline, the kingdom said, threatening a key workaround to Iran’s Persian Gulf blockade.
Satellite images released by Planet Labs on Saturday showed the East-West pipeline facility in the Hejaz Region of Saudi Arabia on Sept. 8, and again, after sustaining damage, on Sept. 11.
Sheikh Mohammed bin Abdulrahman Al Thani has been a key mediator in the conflict, even as his country has blamed Tehran for hundreds of missile and drone attacks.
Qatar’s prime minister, Sheikh Mohammed bin Abdulrahman Al Thani, at a news conference in Egypt in August. His trip to Tehran comes at a moment of heightened tension between Iran and Qatar.