Iranian state television said on Sunday that Tehran would free four Americans accused of spying in exchange for four Iranians held in the United States and the release of $7 billion in frozen Iranian funds.
However, the US government denied that an exchange was in the works.
"Informed source says the Biden administration has agreed to release four Iranian prisoners jailed for bypassing US sanctions in exchange for four American 'spies'," the Iranian state TV report said on Sunday.
In Washington, State Department spokesman Ned Price told Reuters: "Reports that a prisoner swap deal has been reached are not true".
"As we have said, we always raise the cases of Americans detained or missing in Iran. We will not stop until we are able to reunite them with their families."
Ron Klain, White House chief of staff, also denied the report. "Unfortunately, that report is untrue. There is no agreement to release these four Americans," Klain said on CBS "Face the Nation".