Iran detained 21,000 people during its 12-day war with Israel in June, the regime has revealed. Iran has not previously acknowledged the scale of the mass arrests, which came amid fears that Iranian society had been infiltrated by Mossad, Israel’s intelligence agency.

Tehran says it carried out widespread internal arrests as Israel, US launched huge strikes on the country in June.

In the early morning hours of June 13, a commando team led by a young Iranian, S.T., settled into position on the outskirts of Tehran. The target was an anti-aircraft battery, part of the umbrella of radars and missiles set up to protect the capital and its military installations from aerial attack.