Iran has sent its surviving nuclear scientists into deep hiding after Israel killed more than 30 researchers, The Telegraph can reveal.

After the war with Israel, Iranian authorities have swept up hundreds of people deemed suspected infiltrators. But the arrest and hanging of the nuclear scientist Roozbeh Vadi was a rare move.

Iran has executed two men in separate cases, accusing one of spying for Israel and another of being a member of the Islamic State group.

Executions of Iranians convicted of spying for Israel have significantly increased this year, with at least eight death sentences carried out in recent months. Iran executed a man on Wednesday convicted of spying for Israel and passing on information about a nuclear scientist killed in Israel's June attacks on the Islamic Republic,

Key Points and Summary – Iran has executed a man accused of spying for Israel’s Mossad, alleging he provided information that led to the killing of a nuclear scientist during the June airstrikes. -The executed man,

In a rare move, Iran has executed a top nuclear scientist accused of spying for Israel—exposing just how deeply foreign intelligence may have infiltrated one of the country's most sensitive programs,