Iran facing "nationwide internet blackout," monitoring group says, amid hope that 12 days of deadly protests may swell into a tipping point against a repressive regime.

Iranian protests sparked by a currency collapse evolved into a broader uprising demanding regime overthrow, with demonstrators torching government buildings across provinces.

Tehran on Sunday threatened to retaliate against Israel and US bases in the event of US strikes on Iran, delivering the warning to Washington as Israeli

Iranian Montrealers rallied in the downtown core Saturday afternoon in a show of support for the people of Iran. Over the past two weeks, the country has been rocked by massive protests that began over Iran's ailing economy and continue to be fueled by anger toward the regime.

Exiled Iranian Crown Prince Pahlavi appeals to President Donald Trump for immediate intervention as Iran implements internet blackout amid deadly protests.

Protesters were "ruining their own streets" to please President Donald Trump, who has threatened intervention, Supreme Leader Ayatollah Ali Khamenei said Friday.

Anti-government protests in Iran appeared to accelerate, sparked by economic woes and disillusionment with Tehran's clerical leaders.

Iran's Supreme Leader Ayatollah Ali Khamenei strikes a defiant tone against the U.S. after a night of massive anti-government protests.