国际原子能机构（IAEA）：伊朗洪达卜重水生产厂的关键建筑受到破坏。

Group 1 - The International Atomic Energy Agency (IAEA) reported that key structures at Iran's Arak heavy water production plant have been damaged [1] - This incident is significant in the context of ongoing tensions in the Middle East [1] - The damage to the facility raises concerns regarding Iran's nuclear capabilities and compliance with international agreements [1] Group 2 - The IAEA's findings may impact diplomatic negotiations surrounding Iran's nuclear program [1] - The situation could lead to increased scrutiny and potential sanctions from the international community [1] - Monitoring of Iran's nuclear activities will likely intensify following this development [1]