Rubio says US expecting Iran response Friday

U.S. Secretary of State Marco Rubio on Friday slammed Iranian efforts to control the Strait of Hormuz, following a report that Tehran has created an authority to approve transit through the vital waterway.

"Iran now claims that they own, that they have a right to control, an international waterway... That's an unacceptable thing that they're trying to normalise," Rubio told reporters during a visit to Rome.

Rubio fielded questions at the end of a two-day fence-mending visit to Rome and the Vatican after sharp disagreements over the U.S.-Israeli war in Iran and President Donald Trump’s criticisms of Pope Leo XIV.

He was asked about reports from a shipping data company that said Iran has created a government agency to vet and tax vessels seeking passage through the strait.

“Is the world going to accept that Iran now controls an international waterway?” Rubio asked. “What is the world prepared to do about it?”

He also warned Tehran against attacking American maritime assets in the region. The U.S. said it thwarted attacks on three Navy ships in the Strait of Hormuz.

“The red line is clear. They threaten Americans, they are going to be blown up,” he said.

Rubio said the U.S. is anticipating a response from Iran on the ongoing diplomatic discussions sometime later Friday.

“We should know something today,” Rubio, who doubles as the White House national security adviser, told reporters.

He added: “I hope it’s a serious offer. I really do.”

He said President Donald Trump has yet to decide how to respond to some allies denying the U.S. military the use of their bases.

"If one of the main reasons why the US is in NATO is the ability to have forces deployed in Europe that we could project to other contingencies, and now that's no longer the case, at least when it comes to some NATO members, that's a problem, and it has to be examined," he told reporters during a visit to Rome, adding that Trump "hasn't made those decisions yet".