"We will not accept any bargaining for an unlimited suspension" of enriching uranium, said Hossein Mousavian, the head of the Iranian delegation to a meeting in Vienna of the UN nuclear watchdog.

"Iran will not accept committing itself to a new suspension of the manufacture of parts" for centrifuges used for enrichment, he was quoted as saying by the Iranian student news agency ISNA.

"Iran will not accept having to make new commitments that extend the scope of the suspension of uranium enrichment," he said.