Iran has indicted two French nationals and a Belgian for espionage and working against the country's national security, the semi-official Student News Network quoted a judiciary spokesperson as saying on Tuesday.
The agency did not give the names of the three or say where or when they were indicted.
Belgium's justice minister said last month Belgian aid worker Olivier Vandecasteele had been sentenced to 28 years in prison in Iran for what he called a "fabricated series of crimes".
