The U.N. Security Council met on Sunday to discuss U.S. strikes on Iran’s nuclear sites as Russia, China and Pakistan proposed the 15-member body adopt a resolution calling for an immediate and unconditional ceasefire in the Middle East.

“The bombing of Iranian nuclear facilities by the United States marks a perilous turn,” U.N. Secretary-General Antonio Guterres told the Security Council on Sunday. “We must act – immediately and decisively – to halt the fighting and return to serious, sustained negotiations on the Iran nuclear program.”

The world awaited Iran’s response on Sunday after U.S. President Donald Trump and Secretary of Defense Pete Hegseth said the U.S. had “obliterated” Tehran’s key nuclear sites, joining Israel in the biggest Western military action against the Islamic Republic since its 1979 revolution.

Russia and China condemned the U.S. strikes.

“Peace in the Middle East cannot be achieved by the use of force. Dialogue and negotiation are the fundamental way out at present, said China’s U.N. Ambassador Fu Cong. “Diplomatic means to address the Iranian nuclear issue haven’t been exhausted, and there’s still hope for a peaceful solution.”