Iran threatened to attack a US aircraft carrier if it returned to the Persian Gulf. Sanctions targeting Iran's oil sector prompted a 40 percent drop in Iran's currency value.
Iran threatened on Tuesday to take action if the U.S. Navy moves an aircraft carrier into the Gulf, Tehran's most aggressive statement yet after weeks of sabre-rattling as new US and EU financial sanctions take a toll on its economy.
Queues formed at banks and some currency exchange offices shut their doors as Iranians scrambled to buy dollars to protect their savings from the currency's fall.
Army chief Ataollah Salehi said the United States had moved an aircraft carrier out of the Gulf from because of Iran's naval exercises, and Iran would take action if the ship returned.
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