AKIPRESS.COM - Americans freed by Iran over the weekend reunited with their families at a US military base in Germany, but relatives of another hostage expressed serious disappointment he had not been released.

Tehran released four Iranian-American dual nationals, some of whom had been held for years, in a prisoner swap, while a fifth American was freed separately, Daily Mail reported.

In exchange, Washington granted clemency to seven Iranians. And it withdrew international arrest notices for 14 Iranians.

The prisoner swap came as the UN nuclear watchdog confirmed Iran had put a nuclear bomb beyond its immediate reach and the US and EU lifted their most draconian economic sanctions.

US diplomats insisted, to widespread skepticism, that the two breakthroughs were entirely separate.

On Monday, three of the freed Americans were receiving medical checkups at US military facilities in Landstuhl, Germany.

Relatives and supporters of Washington Post reporter Jason Rezaian and Marine veteran Amir Hekmati saw them for the first time since being released and shared group photographs.

The family of Saeed Abedini was expected to arrive later.

The fourth freed Iranian-American, named as Nosratollah Khosravi-Roodsari, apparently chose to remain in Iran. Very little is publicly known about him.