A spokesman for Iran's Supreme National Security Council is denying a report that says the council head and top nuclear negotiator Hassan Rowhani has resigned.

Spokesman Ali Agha-Mohammadi says the resignation announcement published Wednesday by the state news agency IRNA was "completely" false.

The IRNA report quoted an informed source as saying Mr. Rowhani, who heads ongoing nuclear talks with the European Union, has sent his resignation letter to outgoing President Mohammed Khatami.

There has been growing media speculation in recent days that Mr. Rowhani would quit to allow President-elect Mahmoud Ahmadinejad to fill the position.

Some information for this report provided by AFP, AP and Reuters.