News agencies in Iran say Tehran welcomes "constructive" talks with world powers on its nuclear program.

The statement by Iranian officials Wednesday is in response to a recent invitation from six major world powers, including the U.S., to discuss the nuclear dispute.  

The head of the International Atomic Energy Agency, IAEA, had said earlier this week that Iran should "reciprocate" recent overtures by the Obama administration aimed at ending an international standoff over Tehran's nuclear drive.

The IAEA is the United Nations' global nuclear watchdog and has wrestled with Tehran over its efforts to enrich uranium, which can be used as an ingredient in atomic weapons.

The U.S. and its Western allies believe Iran's nuclear program may have a military component.  Iran says its atomic activities are for peaceful, civilian use.

Some information for this report was provided by AFP and Reuters.