Iran's elite Revolutionary Guards have deployed forces to three provinces to put down an eruption of anti-government unrest after six days of protests that have rattled the clerical leadership and left 21 people dead.
Three members of Iran's intelligence forces were killed in clashes in the western city of Piranshahr on Wednesday, Mehr news agency reported, citing a statement from the Revolutionary Guards.
The three died "in a fight with anti-revolutionary elements," the statement read, though it did not say if the fight was related to the anti-government protests in Iran.
The protests, which began last week out of frustration over economic hardships suffered by the youth and working class, have evolved into a rising against the powers and privileges of a remote elite especially Supreme Leader Ayatollah Ali Khamenei.
Defying threats from the judiciary of execution if convicted of rioting, protests resumed after nightfall with hundreds hitting the streets of Malayer in Hamadan province chanting: "People are begging, the supreme leader is acting like God!"
Videos carried by social media showed protesters in the northern town of Nowshahr shouted "death to the dictator" - an apparent reference to Khamenei.
In a sign of official concern about the resilience of the protests, the Revolutionary Guards commander, Major General Mohammad Ali Jafari, said he had dispatched forces to Hamadan, Isfahan and Lorestan provinces to tackle "the new sedition."
Most of the casualties among protesters have occurred in those regions of the sprawling Islamic Republic.
The Revolutionary Guards, the sword and shield of Iran's Shi'ite theocracy, were instrumental in suppressing an uprising over alleged election fraud in 2009 in which dozens of mainly middle-class protesters were killed. Khamenei condemned that unrest as "sedition."
Anti-government rallies, held in defiance of the pervasive security services, have called for the downfall of the Islamic Republic, posing one of the most sustained challenges to the established order of the major oil-exporting state since the 1979 Islamic Revolution that overthrew the U.S.-backed Shah.
In a state-sponsored show of force aimed at countering the outpouring of dissent, thousands of Iranians also took part in pro-government rallies in several cities on Wednesday morning.
State television broadcast live footage of rallies in cities across the country, where marchers waved Iranian flags and portraits of Khamenei, Iran's paramount leader since 1989.
Pro-government marchers chanted, "The blood in our veins is a gift to our leader (Khamenei)," and, "We will not leave our leader alone." They accused the United States, Israel and Britain of inciting protests, shouting, "The seditionist rioters should be executed!"
In the Shi'ite holy city of Qom, pro-government demonstrators chanted "death to American mercenaries."
On Tuesday, the 78-year-old Khamenei had accused Iran's adversaries of fomenting the protests.
Rare anti-government outpouring
U.S. President Donald Trump, who has sought to isolate the Tehran leadership, reversing the conciliatory approach of predecessor Barack Obama, said Washington would throw its support behind the protesters at a suitable time.
"Such respect for the people of Iran as they try to take back their corrupt government. You will see great support from the United States at the appropriate time!" Trump wrote in the latest of a series of tweets on Iran's turmoil.
The protests seem to be spontaneous, without a clear leader, cropping up in working-class neighbourhoods and smaller cities, but the movement seems to be gaining traction among the educated middle class and activists who spearheaded the 2009 revolt.
More than 100 Iranian woman activists voiced support for a new uprising in a statement on Wednesday. Several prominent Iranian lawyers, including Nobel Peace Prize laureate Shirin Ebadi, urged Tehran to respect people's right to freedom of assembly and expression, guaranteed under the constitution.
Some labour unions as well as minority Kurdish opposition groups have also thrown their weight behind the protests.
In Geneva, the U.N. human rights chief urged Iran to rein in security forces to avoid further violence and respect the right of protesters to freedoms of expression and peaceful assembly.
Zeid Ra'ad al-Hussein, U.N. High Commissioner for Human Rights, said hundreds of Iranians had been arrested in the past week, and called for "thorough, independent and impartial investigations of all acts of violence".
Hamidreza Abolhassani, a regional judicial official, said a European citizen had been arrested for leading rioters in the Borujerd area of western Iran and was suspected of having been "trained by European intelligence services". The detainee's nationality was not given.
The outburst of dissent is the most serious since Iranians took to the streets in 2009 over accusations of vote-rigging in the re-election of then-President Mahmoud Ahmadinejad, a conservative hardliner, over two reformist challengers.
Rohani under pressure
The protests have heaped pressure on President Hassan Rohani, a relative moderate who championed a deal struck with world powers in 2015 to curb Iran's disputed nuclear program in return for the lifting of most international sanctions.
Many of the protesters are fuming over what they see as the failure so far of Rohani's government to deliver on promises of more jobs and investment as a dividend of the nuclear accord.
Anger over economic stagnation and reputed graft within the clerical and security hierarchies has been building since last month. Thousands joined a hashtag campaign on Twitter and other sites to vent frustration over the dragging pace of reforms to tackle high unemployment and grant more social freedoms.
Khamenei and Rohani have vowed to crack down on high-level corruption and create economic prosperity for all Iranians.
But there have been few changes. The Revolutionary Guards, for example, still control a vast, lucrative economic empire.
While more than 20 million out of 80 million Iranians live below the poverty line, the wealthy, including relatives of government officials, import tens of thousands of luxury cars every year, causing widespread resentment.
Trump has said in tweets that Iranians have lost patience with alleged graft and what he called a terrorist regime.
Trump must decide by mid-January whether to continue waiving U.S. sanctions on Iran's oil exports under terms of the nuclear deal he opposed. But if reimposes sanctions, he risks worsening the economic pain of Iranians he has vowed to help.
"If the Americans' sympathy with Iranians were real, they would have not imposed cruel sanctions on the our nation," Jafari, the Revolutionary Guards commander, said on Wednesday.
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