Iran has hanged two men it accused of spying for Israel as the Islamic republic’s execution spree -- often based on vague national security charges -- since the start of the war with the United States and Israel shows few signs of slowing down. The judiciary-run Mizan news agency said Omid Behzad and Puria Safvat were executed in the early hours of August 3. Since the start of the war with the United States and Israel on February 28, Iran has witnessed a surge in executions of people human rights groups consider political prisoners -- from demonstrators to alleged members of banned groups and those convicted of spying. Some rights groups say more than 50 people hit with security and political charges have been executed since the beginning of the war, though others put the number much higher. Rights groups and international observers have raised concerns over the fairness of the proceedings, including allegations of coerced confessions and limited access to due process.