On Saturday, Saudi Arabia shut down a key oil pipeline after a drone attack launched from Iraq. The shutdown restricts oil flow.
Iraq opened a probe into the strikes and closed three frontier posts with Iran.
Yemen hit back against Houthis. Saudi Arabia faces limited choices as it faces mounting threats from Iran and its supporters. The attack from Iraq triggered the shutdown of the pipeline. Iraq's probe into the strikes continues. The closed frontier posts with Iran form part of Iraq's response.