On Saturday, Saudi Arabia closed a key oil pipeline after a drone attack launched from Iraq. The shutdown limits oil flow.

Iraq launched an investigation into the strikes and sealed three border crossings with Iran.

Yemen hit back against Houthis. Saudi Arabia is running out of options as it confronts mounting threats from Iran and its allies. The attack from Iraq caused the pipeline shutdown. Iraq's probe into the strikes continues. The closed frontier posts with Iran are part of Iraq's response.