Iran said Friday it is using preventative measures to keep young people from developing sympathy for the Islamic State extremist militia.
Intelligence services observe young people for signs of sympathy towards the terrorist organization, and suspects are either summoned to appear before authorities or detained for a short period.
The individuals are then made clear that Islamic State has nothing to do with Islam or the Koran.
"Prevention is more effective than trying to repair the damages later," Intelligence Minister Mahmoud Alavi said.
Shiite Iran is considered an arch-enemy of the Sunni Islamic State extremist group, which it has battled in Iraq and Syria for years.
Using preventative measures, authorities have kept 1,500 young people from joining the Islamist militia, Alavi told the new agency Tasnim.
In June, Alavi said Islamic State supporters planned 50 terrorist attacks across densely populated centres in Iran, but were thwarted by authorities.