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This is a locator map for Iran with its capital, Tehran.The Associated Press

Iran on Saturday began construction on a new nuclear power plant in the country’s southwest, Iranian state TV announced, amid tensions with the U.S. over sweeping sanctions imposed after Washington pulled out of the Islamic Republic’s nuclear deal with world powers.

The announcement also comes as Iran has been rocked by nationwide anti-government protests that began after the death of a young woman in police custody and have challenged the country’s theocratic government.

The new 300-megawatt plant, known as Karoon, will take eight years to build and cost around $2 billion, the country’s state television and radio agency reported. The plant will be located in Iran’s oil-rich Khuzestan province, near its western border with Iraq, it said.

The construction site’s inauguration ceremony was attended by Mohammed Eslami, head of Iran’s civilian Atomic Energy Organization, who first unveiled construction plans for Karoon in April.

Iran has one nuclear power plant at its southern port of Bushehr that went online in 2011 with help from Russia, but also several underground nuclear facilities.

The announcement of Karoon’s construction came less than two weeks after Iran said it had begun producing enriched uranium at 60% purity at the country’s underground Fordo nuclear facility. The move is seen as a significant addition to the country’s nuclear program.

Enrichment to 60% purity is one short, technical step away from weapons-grade levels of 90%. Non-proliferation experts have warned in recent months that Iran now has enough 60%-enriched uranium to reprocess into fuel for at least one nuclear bomb.

The move was condemned by Germany, France and Britain, the three Western European nations that remain in the Iran nuclear deal. Recent attempts to revive Iran’s 2015 nuclear deal, which eased sanctions on Iran in exchange for curbs on its nuclear program, have stalled.

Since September, Iran has been roiled by nationwide protests that have come to mark one of the greatest challenges to its theocracy since the chaotic years after its 1979 Islamic Revolution. The protests were sparked when Mahsa Amini, 22, died in custody on Sept. 16, three days after her arrest by Iran’s morality police for violating the Islamic Republic’s strict dress code for women. Iran’s government insists Amini was not mistreated, but her family says her body showed bruises and other signs of beating after she was detained

In a report published late Saturday on the semi-official state news agency, ISNA, Iran’s prosecutor general, Mohamed Jafar Montazeri, said the morality police were ‘’closed.’’ He provided no further details about the state of the force, or if its closure was widespread and permanent.

“The judiciary continues to monitor behavioral actions at the community level,’’ Montazeri added.

Separately, the U.S. Navy said Saturday it intercepted a fishing vessel in the Gulf of Oman on Thursday attempting to smuggle 50 tons of ammunition and a key component for missiles from Iran to Yemen.

Experts have accused the Iranian government of continually conducting Illicit weapons smuggling operations to supply Yemen’s Houthi rebels. The shipments have included rifles, rocket-propelled grenades and missiles. Last month, the U.S. seized 70 tons of a missile fuel component hidden among fertilizer bags aboard a ship bound for Yemen from Iran.

“This significant interdiction (on Thursday) clearly shows that Iran’s unlawful transfer of lethal aid and destabilizing behavior continues,” said Vice Adm. Brad Cooper, commander of the Bahrain-based U.S. 5th Fleet, in a statement.

There was no immediate comment from Iran on the seizure.

Iran has been the Houthis’ major backer since the rebel force swept down from Yemen’s northern mountains in 2014 and seized the capital, Sanaa, forcing the internationally recognized government into exile. In the following year, a Saudi-led coalition armed with U.S. weaponry and intelligence intervened to try to restore the internationally recognized government to power. Since 2014, the United Nations has enforced an arms embargo prohibiting weapons transfers to the Houthis.

The United States unilaterally pulled out of the Iran nuclear deal — formally known as the Joint Comprehensive Plan of Action, or JCPOA — in 2018, under then-president Donald Trump. It reimposed sanctions on Iran, prompting Tehran to start backing away from the deal’s terms. Iran has long denied ever seeking nuclear weapons, insisting its nuclear program is peaceful.

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