RFERL:

Iran's utmost authority Supreme Leader Ayatollah Ali Khamenei said the Islamic Republic had nothing to be concerned about, a report on his official website said on Wednesday, as the country's clerical leadership faces biting U.S. sanctions.

The sanctions imposed on Tehran this week have already led banks and many companies around the world to scale back dealings with Iran. Companies doing business with Iran will be barred from the United States, President Donald Trump said on Tuesday.

"With regard to our situation do not be worried at all. Nobody can do anything," his website Khamenei.ir quoted him as saying in one of his speeches in the past weeks, but was published only a day after the new U.S. sanctions took effect.

Trump tweeted on Tuesday that the new sanctions, which were lifted under a 2015 international nuclear deal, were the most biting sanctions ever imposed.

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