UN Secretary-General António Guterres has warned that a US strike on Iran's nuclear facility could trigger a new wave of violence and retaliation in the Middle East. He called the situation a dangerous turning point. IAEA chief Rafael Grossi also urged restraint, warning of possible global nuclear risks. Russia, China, and Pakistan proposed a ceasefire resolution, but the UN Security Council remains divided. Iran condemned the US attack as unjustified, while Israel defended it as a move to ensure global safety.