Reactor building of Iran's Bushehr nuclear power plant

Iran says it will resume some nuclear activities that had been suspended as part of a deal with European negotiators, but vowed to maintain its current freeze on uranium enrichment.

A foreign ministry spokesman in Tehran said the government is still discussing what nuclear activities to resume. He said the suspension of uranium enrichment will be maintained as long as nuclear talks between Iranian and European officials from Britain, Germany and France continue.

Meanwhile, Iranian Foreign Minister Kamal Kharrazi is expected to mount a staunch defense of Tehran's nuclear program Tuesday at an ongoing U.N. conference on the Nuclear Non-Proliferation Treaty.

During the opening session of the conference Monday, U.S. Assistant Secretary of State Stephen Rademaker said Iran was in clear violation of the treaty and called for tough measures unless it gives up the sensitive aspects of its nuclear program.

Iran insists its nuclear program is for peaceful purposes.