On Saturday, Saudi Arabia closed a major oil link after an unmanned aerial strike fired from Iraq. The shutdown limits oil flow.

Iraq launched an investigation into the strikes and sealed three frontier posts with Iran.

Yemen hit back against Houthis. Saudi Arabia has few options as it confronts growing dangers from Iran and its supporters. The attack from Iraq led to the pipeline shutdown. Iraq's probe over the attacks is ongoing. The closed border crossings with Iran are part of Iraq's response.