TEHRAN, Iran - Iran will resume some nuclear activities related to uranium enrichment that it had suspended, a top official said Saturday in a new show of defiance in the face of U.N. censure.

Among the measures to be resumed are the building of centrifuge parts needed for enrichment, said Hasan Rowhani, the country's top nuclear official.

Iran is considering resuming actual uranium enrichment but will not do so immediately, he said. Resumption of enrichment could provoke a deep crisis.

Rowhani pledged to continue cooperating with the International Atomic Energy Agency, while adding that Iran will inform the U.N. nuclear watchdog agency soon on how it would proceed.

"Iran will reconsider its decision about suspension and will do some uranium activity in the coming days," Rowhani said. "Whether we are going to resume enrichment — meaning injecting gas into centrifuges — we haven't decided yet. Perhaps we will continue suspension of injecting gas into centrifuges for some time, but we will end suspension of some other measures in the coming days."

Rowhani also said Iran had specified to European nations in October that its suspension of uranium enrichment would last anywhere from one day to a maximum of one year. It may be a matter of only four months before Iran resumes enrichment activities.

Rowhani's remarks came a day after a European-drafted resolution passed by the IAEA said it "deplores" that "Iran's cooperation has not been as full, timely and proactive as it should have been."

The resolution also noted that after almost two years since Iran's program came to light, many questions remained.

The censure was a product of days of diplomatic maneuvering and attempts by Iran to tone it down at a meeting of the IAEA 35-member board of governors. The board did not hand down sanctions.

Rowhani said Iran's decision to reconsider its suspension of uranium activity was in response to failure of Britain, Germany and France to help close Iran's nuclear dossier at this week's IAEA's meeting. In February, according to Rowhani, the three European powers promised to work toward closure by June if Iran stopped making centrifuges. It did so in April.

"The European side failed to respect its promise. Their explanation for keeping Iran's dossier open is not acceptable. The promise was broken by the Europeans. Therefore, we can't be committed to our promise," he said...