Tehran, Iran – Iran’s foreign ministry says a state television report on prisoner swaps with the United States cannot be confirmed as a political rift widens ahead of presidential elections in June.

Foreign ministry spokesman Saeed Khatibzadeh said on Monday that the report could not be confirmed and that the issue of swapping prisoners is being reviewed by both sides.

The state-run broadcaster had quoted an unnamed official on Sunday as saying four Iranian prisoners held in the US for circumventing sanctions would be swapped with four American dual nationals in Iran, and $7bn in frozen Iranian funds will be released.