The arrests are a sign of the uncertainty felt by Iran's security establishment after the Israeli and U.S. attacks. Authorities have escalated a security crackdown on alleged Mossad agents following the 12-day conflict in which Israel attacked nuclear and military sites across the country,

Asghari, 35, is among tens of thousands of Afghans whom Iran has deported home in the past few weeks, in the fallout of a conflict the United Nations says risks further destabilising Afghanistan, already battling a humanitarian crisis.