Vienna, Sep 14 (IANS): The International Atomic Energy Agency (IAEA) has approved a resolution, urging Iran to comply with its obligations on nuclear issue while expressing "serious concern" over Tehran's disputed nuclear programme.

The UN nuclear watchdog wants Iran to fully comply with all of its obligations under the relevant resolutions of the UN Security Council (UNSC) "without delay", Xinhua reported.

The resolution said that Iran "continues to defy the requirements and obligations" contained in the relevant IAEA Board of Governors and UNSC resolutions, including the continuing and expanding uranium enrichment activities, in particular, at the Fordow Fuel Enrichment Plant.

As Iran is not providing the necessary cooperation, the IAEA is unable to provide evidence that all nuclear material in Iran is in peaceful activities, said the resolution.

At the same time, it also requested Iran to provide IAEA an access to the relevant sites.

Reacting over the resolution, Iranian envoy to the IAEA Ali Asghar Soltanieh said the resolution can only complicate the issue by politicising it.

The conclusion reached in the resolution has been based on information from western intelligence agencies, which is biased and contains distortion of facts, he added.