On Saturday, Saudi Arabia halted a major oil link after an unmanned aerial strike 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 has few options as it faces mounting threats from Iran and its supporters. The attack from Iraq caused the shutdown of the pipeline. Iraq's probe over the attacks is ongoing. The closed frontier posts with Iran form part of Iraq's response.