The Russian FSB confirmed that today at the Abu Dhabi airport, with the mediation of the UAE, a prisoner exchange with the United States took place. The agency reported that Russian Artur Petrov, detained in Cyprus at the request of the United States, was exchanged for Ksenia Karelina, convicted of treason. In addition, the FSB indicated that Ksenia Karelina, who was transferred to the United States as part of the exchange, was pardoned by a presidential decree in April.