The United Nations Security Council has unanimously passed a draft resolution urging Iran to halt its uranium enrichment programme.
The document also calls on Tehran to comply with earlier resolutions to halt nuclear activities and cooperate with the UN's nuclear watchdog the IAEA.
However, the resolution does not impose new sanctions.
The text calls on Iran "to fully comply and without delay with its obligations" under past resolutions.
The draft was agreed after Russia said it would not support further sanctions.
The West suspects Iran wants to build a nuclear weapons capability.
Tehran says its nuclear programme is peaceful.
Iran's chief nuclear negotiator, Saeed Jalili, said the new resolution would cause "mistrust" and would not help global peace and security.
On Wednesday, Iranian President Mahmoud Ahmadinejad warned it would resist "bullying powers" trying to thwart its nuclear ambitions.
