Iran is ready for a full prisoner exchange with the United States, Iranian government spokesman Ali Rabiei says, adding that Washington has yet to respond to Iran's call on a prisoner swap.
"We have announced that we are ready without any preconditions to exchange all prisoners and we are prepared to discuss this issue but Americans have not responded yet," Rabiei told the news site Khabaronline on May 10.
"We are worried about the safety and health of Iranians in jail ... We hold America responsible for Iranians' safety amid the new coronavirus outbreak," Rabiei added.
Western media reported last week that Tehran and Washington are negotiating a deal that would release Navy veteran Michael White for an Iranian held in the U.S. White, detained in Iran for allegedly insulting Supreme Leader Ayatollah Ali Khamenei and posting private information online, was released on medical furlough in March amid the coronavirus pandemic.
Iran is believed to be holding at least four Americans.
Iran says U.S. authorities are holding some 20 Iranian nationals in jail.
In a rare act of cooperation, the United States and Iran swapped prisoners in 2019 - American graduate student Xiyue Wang, detained on alleged spying charges, and imprisoned Iranian stem-cell researcher Massud Soleimani, accused of sanction violations.
Tensions between Tehran and Washington have heightened since the coming to power of U.S. President Donald Trump who exited the United States from the 2015 nuclear deal with Iran and reimposed crippling sanctions on the Islamic republic.
U.S. Secretary of State Mike Pompeo called on Iran in March to release on humanitarian grounds all wrongfully detained Americans held in the country.