Iranian president's comments come amid increasing pressure from Canada for answers to shooting down of passenger jet, fresh protests against government

Exiled Reza Pahlavi, son of deposed Shah, says Iranians becoming more fearless in demonstrating against government, expect the world to show more than 'just moral support'

Rights group says it has evidence Islamic Republic's security personnel used rubber bullets, tear gas and pepper spray, and pointed air-gun pellets normally used for hunting

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

No details given on identity or number of detainees; Iranian president calls for formation of special court because 'the whole world will be watching'

US president's open encouragement of demonstrations and praise for protesters refusing to walk on Israeli flag is break from previous Washington policy on Iran affairs, say experts

Chief says force is showing 'patience,' Germany urges Iranian authorities to allow demonstrators 'to express their opinions' over downing of airliner

Clips show demonstrators flee tear gas, woman apparently shot and bleeding out as public continues to respond angrily to shoot-down of Ukrainian passenger plane

Videos show men with guns on the streets, bleeding demonstrators on sidewalks, police in riot gear beating people and dissidents ripping down and defacing posters of slain general