Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Iran Waiting to Hear from US About Prisoner Exchange VOA News Iranian officials said Sunday they are ready for a prisoner exchange with the U.S. but that they have yet to hear from U.S. officials. "Iran has already stated our readiness to discuss the release of all prisoners without preconditions . . . but Americans have not responded," Iranian government spokesman Ali Rabiel said, according to the Iranian government website Dolat.ir. Both countries have called for the swap because of concerns about COVID-19. Iran has been hard hit by the virus, while the U.S. leads the world in the number of infections. The exact number of prisoners held by either side is not immediately clear. The last, rare prisoner exchange between the two longtime foes happened December 7, when Iran freed Chinese American academic Xiyue Wang in return for the U.S. releasing Iranian scientist Masoud Soleimani. The swap happened in Zurich through Swiss mediation. .