The spokesman for the Iranian Foreign Ministry said that the news of a direct dialogue between Iran and the United States is not true as stated and that no direct dialogue had taken place between Iran and the two countries.

Saeed Khatibzadeh explained: "Some messages have been received from the new US governments through the Swiss embassy as the guardian of US interests and some foreign ministers of other countries expressed their readiness to facilitate the exchange of prisoners."

He continued: "On the issue of prisoners, of course, pursuing the release of Iranian prisoners in the United States, who are mostly convicted of blatant crimes and arrested in illegal processes and are in bad condition in US prisons, has been one of the priorities of the Islamic Republic of Iran."

Earlier, Jake Sullivan, the US government's national security adviser, said that Washington had begun and would continue to communicate with Tehran about US convicts in Iranian prisons, making the return of those convicts a top priority for the government.