Below is a timeline of the recent demonstrations. The scale and ferocity of the protests had clerical leaders in Tehran struggling Tuesday to respond to what is likely the most serious internal crisis the country has faced this decade.
Iranians across the country want higher wages and an end to alleged graft.
The EU's condemnation of the violence, and warning against further violent repression of protesters, highlighted the awkward position of the EU, which has been a staunch defender of the Iran nuclear accord, particularly against criticism from U.S. President Donald Trump.
That could be more risky for the authorities because they have regarded the less well-off as loyal to the Islamic republic, as opposed to the more middle class protesters who took to the streets nine years ago.
At least 30 people were killed and thousands arrested in the wave of protests, which drew the largest crowds in Iran since the Islamic Revolution of 1979.
"Iranian authorities are blocking access to Telegram for the majority of Iranians after our public refusal to shut down ... peacefully protesting channels", he wrote. The U.S. government believes that hard-liners initiated the demonstrations as a means to pressure President Hassan Rouhani, a relatively moderate cleric within Iran's political system. Their voices deserve to be heard.
Bloc says it expects 'right of expression to be guaranteed'.
Nader Hashemi, director of the Center for Middle East Studies at Denver University, said the tumultuous week may embolden reformers, even if President Hassan Rouhani is "in a very hard position".
President Hassan Rouhani championed a deal struck with world powers in 2015 to curb Iran's nuclear program in return for the lifting of most global sanctions. Iran's unemployment rate is 12.5 percent, according to the CIA World Factbook, putting it 136th out of 217 countries.
Shine, now a senior researcher at the Institute for National Security Studies in Tel Aviv, told The Jerusalem Post that while her analysis reviewed a wide range of economic issues confronting the Islamic Republic, the nuclear deal economic relief performing below Iranian expectations had certainly contributed to the protests. "In a place like Iran, which is not only politically authoritarian, but also economically and socially authoritarian, all of that has really come out". Iran's government also organized two days of mass demonstrations across the country Wednesday and Thursday as a sign of strength and to reassure those anxious about the unrest.
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Watch Milani's full interview in the above video. "The rich now heedlessly flaunt their wealth", emphasizing the economic divide.
Nikki Haley, the US Ambassador to the United Nations, called on the global community to speak out on the unfolding protests in Iran, saying the US would seek emergency UN talks on the situation. Now, they've morphed into demands for wholesale change in Iran's theocratic government.
President Trump tweets: "The people of Iran are finally acting against the brutal and corrupt Iranian regime". All of the money that President Obama so foolishly gave them went into terrorism and into their "pockets".
People take part in pro-government rallies in Iran on January 3.
As violence has grown, authorities have stepped up arrests, with at least 450 people detained in Tehran since Saturday and 100 more around Isfahan on Monday, media reported. The Revolutionary Guards, the sword and shield of Iran's Shiite theocracy, were instrumental in suppressing an uprising over alleged election fraud in 2009 in which dozens were killed.
"They have spent all their assets following the Holy Defence era (the period of the Iraqi imposed war on Iran in the 1980s) to carry out their cultural, economic and security threats against Islamic Iran, and, By God's grace, they will undoubtedly be defeated", General Jafari underlined.
The president tweeted Sunday saying the U.S.is watching the "big protests in Iran" for human rights violations. "You will see great support from the United States at the appropriate time!".
Brooke Singman is a Politics Reporter for Fox News. "It's time for them to stand up".