Three Europeans returned home on Saturday a day after being released by Iran in a prisoner swap, and Tehran said there was no reason for Europeans to be arrested if they were not "exploited" by foreign security services.
The three men - two with dual Austrian-Iranian nationality and one Dane - were released on Friday by Iran in return for Iranian diplomat Asadollah Assadi as part of a swap in which Iran freed Belgian aid worker Olivier Vandecasteele last week, a Belgian government spokesperson said.
