Plans for a new resolution against Iran at the UN's nuclear watchdog have been dropped, reports quoting diplomats say.
Diplomats speaking anonymously to news agencies said Western states had scrapped the plans in the face of opposition led by China and Russia.
Some objectors reportedly felt the move unnecessary, after the UN Security Council approved new sanctions over Iran's nuclear programme on Monday.
Some Western states believe Iran wants nuclear weapons. Tehran denies this.
Tehran has refused to comply with demands that it stop enriching uranium.
This can be undertaken for power generation, but may also be a precursor to building an atomic bomb.
Last week the chief inspector of the watchdog, the International Atomic Energy Agency (IAEA), presented intelligence suggesting that Iran had in the past made attempts to weaponise uranium.
The agency's director, Mohammed ElBaradei, on Monday urged Iran to help his agency clarify what he called "this matter of serious concern".
Imposes travel bans on five Iranian officials
Freezes foreign assets of 13 Iranian companies and 13 officials
Bans sale of dual-use items to Iran
Urges governments to withdraw financial backing from firms trading with Iran, inspect cargo going into and out of the country, and monitor the activities of two Iranian banks
Requests IAEA to report on whether Iran has complied with demand to suspend uranium enrichment
If not, threatens further sanctions
Iran insists that its nuclear programme is for peaceful purposes only, and has dismissed the UN Security Council move as illegal.
"This resolution is illogical, illegal and totally politically motivated," Iranian Speaker Gholamali Haddad-Adel said.
But Russia - which has been helping Iran to build its first nuclear power station, and has been supplying it with nuclear fuel - urged Iran to co-operate with the Security Council.
A foreign ministry statement in Moscow said the resolution was a serious political signal to Tehran to meet the demands of the international community.
Fourteen of the 15 members of the council voted in favour of measures including asset freezes and travel bans for Iranian officials.