Iran has executed three men convicted of spying for Israel and detained hundreds more civilians in a widening crackdown that rights groups say reflects growing paranoia within the Islamic Republic's leadership following a deadly exchange of strikes with Israel.

Iranian authorities have carried out arrests and executions of people suspected of links to Israeli intelligence agencies.

Iranian Americans with loved ones in Iran fear reignited war and say conflict could endanger those living in the US.

U.S. intel agencies say Iran's nuclear program is in tatters. Israel killed 30 Iranian military commanders. But Iran's supreme leader has a different take on the 12-day war.