Released US Detainees Board Plane in Tehran for Doha

Five U.S. detainees flew out of Iran on Monday (September 18) in a swap for five Iranians held in the U.S. in a rare deal between the arch enemies that also unfroze $6 billion of Tehran's funds.

A plane sent by mediator Qatar flew the five U.S. citizens and two of their relatives out of Tehran soon after both sides received confirmation the funds had been transferred to accounts in Doha, a source briefed on the matter told Reuters.

At the same time, two of the five Iranians landed in Qatar, a U.S. official said. Three have opted not to return to Iran.