President Trump told Congress this week that hostilities "have terminated."
President Donald Trump announced "major combat operations" against Iran on Feb. 28, with massive joint U.S.-Israeli strikes targeting military, government and infrastructure sites.
Following the announcement of a two-week ceasefire, initial U.S.-Iran talks in Pakistan earlier this month failed to reach a peace deal.
Trump later announced the open-ended extension of the ceasefire and the continuation of the blockade until Iran's proposal is submitted and discussions are concluded "one way or the other."
So far, 45 commercial vessels have been directed to turn around or return to port as part of the U.S. naval blockade of Iranian ports, U.S. Central Command said Friday.
President Donald Trump said Friday that he is "not happy" after recent talks with Iran.
"We just had a conversation with Iran. Let's see what happens. But I would say that I am not happy," Trump told reporters before departing the White House.
Trump said the Iranian leadership is "very disjointed" and "argumentative with each other."
"They come back -- one says one thing, one says another. They're very confused," he said, adding that he's "not satisfied" with what's been offered.
The Trump administration is targeting foreign currency exchange houses that it says help the Iranian military access revenues from oil sales.
"Because Iran primarily settles its oil sales in Chinese yuan, these exchange houses play a critical role in converting oil revenues into currencies that are more readily useable by the Iranian military and its partners and proxies," the Treasury Department said in a statement Friday.
Treasury Secretary Scott Bessent said the action was taken as part of the "Economic Fury" campaign.
"Today’s designations further disrupt the Iranian regime’s mechanisms for receiving payments for oil and other commodities, thereby increasing costs and reducing revenue for the regime’s destabilizing activities, and exposing individuals and the methods the Iranian regime uses to bypass sanctions and abuse the international financial system," Bessent said in a statement.
The move follows actions by the Treasury Department earlier this week to target entities in Iran's shadow banking network that it says help the country evade sanctions.
-ABC News' Chris Boccia
Israel says most of the activists it detained in the Mediterranean near Crete, who were part of a flotilla attempting to break the blockade of Gaza, were taken to Greece.
On Thursday, the Greek foreign ministry said it had "urged Israel to withdraw its vessels from the area and offered its diplomatic assistance by agreeing to host the passengers on its territory and ensure their safe return to their home countries."
The Israeli Foreign Ministry said it would detain two of the members of the flotilla. Palestinian Saif Abu Keshek, whom Israel accuses of "suspected of affiliation with a terrorist organization, and Brazilian citizen Thiago Avila, whom Israel says is "suspected of illegal activity," will be taken to Israel for questioning.
-ABC News' Jordana Miller
