Ruhollah Zam was living in exile in Paris, where he ran a social media channel; he was arrested by Islamic Revolutionary Guard Corps

Syrian Observatory for Human Rights says three Iranians, eight Syrians and 12 Tehran-backed operatives killed in air attack

Asghar Pashapour, who was close to Soleimani, was said to be at the forefront of Revolutionary Guards' operations against anti-Assad rebels

Tehran faces a paramilitary Guard that keeps its own government in the dark, a supreme leader above oversight or reproach, and mounting economic troubles and popular fury

Top Iran envoy Brian Hook threatens new Quds Force chief Esmail Ghaani: 'They can't attack America and expect to get away with it'; Iran condemns 'governmental terrorism'

Official says Iran working to recover data, cabin recordings; Tehran may be hesitant to turn over black boxes that could reveal more details of its downing of Ukrainian airliner

State department targets IRGC's Hassan Shahvarpour over 'massacre of 148 helpless Iranians in the Mahshahr region,' but Washington adds Iran is deescalating tensions

Foreign ministers from countries who lost citizens aboard Ukrainian plane to press for full cooperation at Thursday meet, amid concerns that Tehran may withhold information

Security camera footage could explain why plane's transponder was not working when it was hit by fatal missile

Angry demonstrators at universities in Tehran slam regime for initial denials; security forces separate protesters from pro-government counter-demonstrators