By JON GAMBRELL, Associated Press

@Provided by The Associated Press In this picture released by the official website of the office of the Iranian supreme leader, Supreme Leader Ayatollah Ali Khamenei talks to clerics in his Islamic thoughts class in Tehran, Iran, Sunday, Nov. 17, 2019. Iran’s supreme leader supported the government’s decision to increase gasoline prices and says that those setting fire to public property during protests against the hikes are “bandits” backed by the enemies of Iran. (Office of the Iranian Supreme Leader via AP)

DUBAI, United Arab Emirates (AP) — Iran’s supreme leader on Sunday backed the government’s decision to raise gasoline prices and called angry protesters who have been setting fire to public property over the hike “thugs,” signaling a potential crackdown on the demonstrations.

the demonstrations.

© Provided by The Associated Press In this Saturday, Nov. 16, 2019 image from video aired by Iran’s Islamic Republic of Iran Broadcasting state television channel, a man walks past a fire set by protesters in Abadan, Iran. Protesters angered by Iran raising government-set gasoline prices by 50% blocked traffic in major cities and occasionally clashed with police Saturday after a night of demonstrations punctuated by gunfire, violence that reportedly killed at least one person. (IRIB via AP)

Ayatollah Ali Khamenei’s comments came as authorities apparently shut down the internet across Iran to smother the protests in some two dozen cities and towns over the rise of government-set prices by 50% as of Friday.

Since the hike, demonstrators have abandoned their cars along major highways and joined mass protests in the capital, Tehran, and elsewhere. Some protests turned violent, with demonstrators setting fires and there was also gunfire.

It remains to be seen how many people have been injured, killed or arrested. Authorities on Saturday said only one person was killed, though other videos from the protests have shown people gravely wounded.

© Provided by The Associated Press Demonstrators block a street during a protest after authorities raised gasoline prices, in the central city of Isfahan, Iran, Saturday, Nov. 16, 2019. Demonstrators angered by a 50% increase in government-set gasoline prices blocked traffic in major cities and occasionally clashed with police Saturday after a night of demonstrations punctuated by gunfire. (AP Photo)

In an address aired by state television Sunday, Khamenei said “some people had died and some centers destroyed,” without elaborating. He called violent protesters “thugs” who had been pushed into violence by counterrevolutionaries and foreign enemies of Iran.

“Setting a bank on fire is not an act done by the people. This is what thugs do,” Khamenei said.

© Provided by The Associated Press Cars block a street during a protest against a rise in gasoline prices, in the central city of Isfahan, Iran, Saturday, Nov. 16, 2019. Demonstrators angered by a 50% increase in government-set gasoline prices blocked traffic in major cities and occasionally clashed with police Saturday after a night of demonstrations punctuated by gunfire. (AP Photo)

However, he made a point to back the decision of Iran’s relatively moderate President Hassan Rouhani and others to raise gasoline prices. Gasoline in the country still remains among the cheapest in the world, with the new prices jumping up to a minimum of 15,000 rials per liter of gas — 50% up from the day before. That’s 13 cents a liter, or about 50 cents a gallon. A gallon of regular gasoline in the U.S. costs $2.60 by comparison.

© Provided by The Associated Press In this picture released by the official website of the office of the Iranian supreme leader, Supreme Leader Ayatollah Ali Khamenei talks to clerics in his Islamic thoughts class in Tehran, Iran, Sunday, Nov. 17, 2019. Iran’s supreme leader supported the government’s decision to increase gasoline prices and says that those setting fire to public property during protests against the hikes are “bandits” backed by the enemies of Iran. (Office of the Iranian Supreme Leader via AP)

Khamenei ordered security forces “to implement their tasks” and for Iran’s citizens to keep clear of violent demonstrators.

That seemed to indicate a possible crackdown could be looming. Economic protests in late 2017 into 2018 were met by a heavy reaction by the police and the Basij, the all-volunteer force of Iran’s paramilitary Revolutionary Guard.

“Such illegal actions would not solve any problem but add insecurity on top of other problems,” Khamenei said. “Lack of security is the biggest calamity for any country and society. That is what they are looking for.”

The protests have put renewed pressure on Iran’s government as it struggles to overcome U.S. sanctions strangling the country’s economy since President Donald Trump unilaterally withdrew America from Tehran’s nuclear deal with world powers over a year ago.

Though largely peaceful, the latest demonstrations devolved into violence in several instances, with online videos purporting to show police officers firing tear gas at protesters and mobs setting fires.

While representing a political risk for Rouhani ahead of February parliamentary elections, they also show widespread anger among Iran’s 80 million people who have seen their savings evaporate amid scarce jobs and the collapse of the national currency, the rial.

Cheap gasoline is practically considered a birthright in Iran, home to the world’s fourth-largest crude oil reserves. Rouhani had been pushing for higher prices to offer payments to the poor for months. While the hike was eventually expected, the decision to raise gasoline prices still caught many by surprise and sparked immediate demonstrations overnight.

© Provided by The Associated Press Streets are blocked in a protest after authorities raised gasoline prices, in the central city of Isfahan, Iran, Saturday, Nov. 16, 2019. Protesters angered by Iran raising government-set gasoline prices by 50% blocked traffic in major cities and occasionally clashed with police Saturday after a night of demonstrations punctuated by gunfire, in violence that reportedly killed at least one person. (AP Photo)

Iranian internet access meanwhile saw disruptions and outages Friday night into Saturday, according to the group NetBlocks, which monitors worldwide internet access. By Saturday night, “real-time network data show connectivity has fallen to just 7% of ordinary levels following 12 hours of progressive network disconnections as public protests have continued across the country,” NetBlocks said.

© Provided by The Associated Press In this photo released by the official website of the office of the Iranian supreme leader, Supreme Leader Ayatollah Ali Khamenei, right, talks to clerics in his Islamic thoughts class in Tehran, Iran, Sunday, Nov. 17, 2019. Iran’s supreme leader supported the government’s decision to increase gasoline prices and says that those setting fire to public property during protests against the hikes are “bandits” backed by the enemies of Iran. (Office of the Iranian Supreme Leader via AP)

“The ongoing disruption is the most severe recorded in Iran since President Rouhani came to power, and the most severe disconnection tracked by NetBlocks in any country in terms of its technical complexity and breadth,” the group said. The websites of state media outlets appeared affected by the outage early Sunday.

Protester chants seen in online videos mirrored many from the economic protests in late 2017, which resulted in nearly 5,000 reported arrests and at least 25 people killed. Some criticized Iran’s spending abroad on Palestinians and others while the country’s people remain poor.

© Provided by The Associated Press Smoke rises during a protest after authorities raised gasoline prices, in the central city of Isfahan, Iran, Saturday, Nov. 16, 2019. Demonstrators angered by a 50% increase in government-set gasoline prices blocked traffic in major cities and occasionally clashed with police Saturday after a night of demonstrations punctuated by gunfire. (AP Photo)

The tensions in Iran came as weeks of anti-government protests have engulfed Iraq and Lebanon, two Mideast nations that are home to Iranian proxies and crucial to Tehran’s influence abroad.

Iran long has suffered economic problems since its 1979 Islamic Revolution cut off the country’s decades-long relationship with the U.S. Iran’s eight-year war with Iraq in the 1980s followed, further straining its economy.

The collapse of the nuclear deal has exacerbated those problems. The Iranian rial, which traded at 32,000 to $1 at the time of the accord, fell to 122,600 to $1 in trading on Saturday. Iran has since begun breaking terms of the deal as it tries to force Europe to come up with a way to allow it to sell crude oil abroad despite American sanctions.

The U.S. so far has had a muted response to the protests, with U.S. Secretary of State Mike Pompeo tweeting overnight: “As I said to the people of Iran almost a year and a half ago: The United States is with you.”

© Provided by The Associated Press Protestors attend a demonstration after authorities raised gasoline prices, in the northern city of Sari, Iran, Saturday, Nov. 16, 2019. Protesters angered by Iran raising government-set gasoline prices by 50% blocked traffic in major cities and occasionally clashed with police Saturday after a night of demonstrations punctuated by gunfire. (Mostafa Shanechi/ ISNA via AP)

In Dubai, the new U.S. ambassador to the United Arab Emirates told The Associated Press that America was “not advocating regime change. We are going to let the Iranian people decide for themselves their future.”

“They are frustrated. They want freedom,” Ambassador John Rakolta said at the Dubai Airshow. “These developments that you see right now are their own people telling them, ‘We need change and to sit down with the American government.’”

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Associated Press writer Aya Batrawy in Dubai, United Arab Emirates, contributed to this report.