The potential US military action comes as Iran tightens its grip on the Strait of Hormuz, including attacking several ships earlier on Saturday.
The US is planning to board and seize Iran-linked oil tankers and commercial ships in the coming days, according to a Saturday report by The Wall Street Journal.
The report noted that these actions would take place in international waters, potentially outside of the Middle East.
The US “will actively pursue any Iranian-flagged vessel or any vessel attempting to provide material support to Iran,” US Chairman of the Joint Chiefs of Staff Gen. Dan Caine said. “This includes dark fleet vessels carrying Iranian oil.”
“As most of you know, dark fleet vessels are those illicit or illegal ships evading international regulations, sanctions, or insurance requirements,” Caine continued.
Caine was further quoted as saying that the new campaign, which would be operated in part by the US Indo-Pacific Command, would be part of a broader US President Donald Trump-led campaign against Iran, known as “Economic Fury.”
US to pursue Operation 'Economic Fury' against Iran
White House spokeswoman Anna Kelly told the WSJ that Trump was “optimistic” that the new measures would lead to a peace deal.
The potential US military action comes as Iran tightens its grip on the Strait of Hormuz, including attacking several ships earlier on Saturday, the WSJ reported.
The report cited CENTCOM as saying that the US has already turned back 23 ships trying to leave Iranian ports since the start of its blockade on the Strait.
The expansion of naval action beyond the Middle East will provide the US with further leverage against Iran by allowing it to take control of a greater number of ships loaded with oil or weapons bound for Iran, the report noted.
“It’s a maximalist approach,” said associate professor of law at Emory University Law School Mark Nevitt. “If you want to put the screws down on Iran, you want to use every single legal authority you have to do that.”
Iran claimed earlier on Saturday that it had regained military control over the Strait, intending to hold it until the US guarantees full freedom of movement for ships traveling to and from Iran.
“As long as the United States does not ensure full freedom of navigation for vessels traveling to and from Iran, the situation in the Strait of Hormuz will remain tightly controlled,” the Iranian military stated.
In addition, Iranian Supreme Leader Mojtaba Khamenei declared on Saturday in an apparent message on his Telegram channel that the Iranian navy is prepared to inflict “new bitter defeats” on its enemies.