Iran's Atomic Energy Organization said on Tuesday it had no information about the illicit procurement of equipment for the Arak research reactor as alleged in a report by a U.N. panel of experts and based on a briefing by a member country.

The panel, which monitors compliance with the U.N.'s Iran sanctions regime, said in a report seen by Reuters on Monday that Tehran's illicit procurement of banned nuclear technology appeared to have continued in breach of sanctions.

The panel said it was briefed by a member state, which several diplomats identified as the United States, that it "had observed no recent downturn in procurement by Iran."