Austrian officials have voiced their relief after two of the country's citizens were released by Iran after years of imprisonment in the country, APA reports citing BBC.
Dual Austrian-Iranian nationals Kamran Ghaderi and Massud Mossaheb were freed as part of a prisoner swap involving Europeans and an Iranian diplomat.
The pair's detention in Iran, on spying and security charges respectively, attracted criticism internationally.
Belgium said a third person - a Danish citizen - had also been released.
The trio were flying into Belgium via Oman following medical examinations, Belgian Prime Minister Alexander De Croo said.