Agent says 'the news is not good' as author, subject to Iranian death fatwa, remains in hospital; police arrest Hadi Matar, who reportedly has sympathies for Shia extremists

Knife attack comes 33 years after Iran's supreme leader called on followers to rapidly execute author who was accused of insulting Islam and the Prophet Muhammad

Condition of author, who was speaking at event in New York State, not immediately clear; his novel 'Satanic Verses' prompted calls for his death and a bounty of over $3 million

Islamic Republic's supreme leader accuses Tehran's opponents of seeking to 'strike a blow' amid unrest over deadly building collapse

Incident comes ahead of commemoration events honoring founder of the Islamic Republic; attack also affects websites defaced with graphics criticizing the 'anti-human Khomeini'

Former senior United Nations officials and Nobel prize winners call for investigation into killings of some 30,000 detainees, with Iranian president among alleged perpetrators

In 'Titan of Tehran,' Shahrzad Elghanayan writes about her grandfather, a philanthropist who gave his life rather than abandon his community during the Islamic Revolution

Ali Akbar Mohtashamipour built alliances with Shiites, Palestinians to create Lebanese terror group; reportedly lost a hand in an Israeli assassination attempt

Processions marks first time Iran honors a single man with a multi-city ceremony; 'Iran's wearing black, revenge, revenge,' mourners chant

US president's pronunciation of Ali Khamenei's name sounded to some suspiciously close to the Islamic Republic's founder, Ruhollah Khomeini