The Biden administration is engaging in "indirect" talks with Iran regarding its wrongful detainment of Americans, President Joe Biden’s point man for nuclear negotiations said.

State Department special envoy Rob Malley told the Senate Foreign Affairs Committee on Wednesday that they are engaging “in parallel and separate from the negotiations to return to the [Joint Comprehensive Plan of Action], we’ve been involved in indirect negotiations with Iran to secure the release of our four citizens.”

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Siamak Namazi, Baquer Namazi, Emad Shargi, and Morad Tahbaz are Americans who are being detained in Iran.

"It is not easy," he added. "As you could imagine, Iran is making requests that are very difficult to meet and sometimes are impossible to meet. But we are continuing, and we will not stop until all four of them are home and reunited with their loved ones."

Malley also accused Iran of using the Americans currently detained as "political pawns."

The families of many of the nearly five dozen Americans who are currently being wrongfully detained overseas rallied outside the White House earlier this month. They are hoping to get a meeting with Biden, though they have been unsuccessful.

Tara and Taymoor Tahbaz, whose father has been detained in Iran for roughly four years, attended the rally, and Tara told the Washington Examiner, "We've been quiet until now and been very respectful in every turn of which we've taken to navigate this journey ... we're trying to make sure that we're leaving no stone unturned and to not have any regrets of opportunity to be able to push to get him home as soon as possible."

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The plights of the Americans wrongfully detained in Iran come as the United States is engaging in negotiations with the Iranian regime over the 2015 Iran nuclear deal that former President Donald Trump withdrew from while in the White House. Malley provided a bleak outlook on the possibility of reaching a new deal, saying the "prospects for reaching one are tenuous at best."

The Biden administration had reportedly considered removing the Islamic Revolutionary Guard Corps' terrorist designation, though Israeli Prime Minister Naftali Bennett thanked the administration on social media for deciding against that option.