Atomic Energy Organization of Iran Director Fereydoun Abbasi has dismissed the news reports saying that Iran and the UN nuclear agency may hold a meeting in August, Tehran Times reported.
"We have not received any new information in this regard," he told reporters after a cabinet meeting on Wednesday, adding, "We ourselves will make an announcement in this relation if there is a new development."
Reuters reported on July 8 that Iran and the International Atomic Energy Agency might hold a new round of nuclear talks in August.
According to the report, a diplomat in Vienna, where the IAEA is based, said he believed the aim was for an IAEA-Iran meeting in mid-August but that no decision had yet been taken.
"I think that no meeting in August would be a bad sign," another Western envoy said.
The IAEA-Iran discussions are separate from, but still closely associated with, broader negotiations between Tehran and six world powers aimed at an overall political solution to the dispute over Iran's nuclear program, which the West suspects may be geared to developing nuclear weapons but Tehran insists is entirely peaceful.
The IAEA, in an e-mailed response to a question, said it had no news to report about any future discussions with Iran. They last met in May in Vienna, without achieving a breakthrough.
International hopes for a resolution of the nuclear dispute were boosted by the election of Hassan Rohani because he has promised a more conciliatory approach to foreign relations than incumbent President Mahmoud Ahmadinejad.
Iran says it is enriching uranium only to fuel nuclear power stations, and for medical purposes.
IAEA Director General Yukiya Amano told Reuters last month he remained committed to dialogue with Iran to address the UN agency's concerns about what it calls the possible military dimensions to the country's nuclear program.
Ten rounds of talks since early 2012 have failed to make progress in reviving the investigation.
The IAEA has called on Iran to sign and implement a structured approach document to resolve the outstanding issues and has stated that gaining access to the Parchin military site, which is located southeast of Tehran, is a priority.
Iran has made it clear that access to the "conventional" military site would not be possible before an agreement is reached on the structured approach document.