A spokesman for Iran’s Foreign Ministry said Monday that Tehran plans to charge ships transiting the Strait of Hormuz, contradicting statements by President Donald Trump and Vice President JD Vance after the sides announced a peace deal.

"The Strait of Hormuz is very important for us, and we have adopted certain procedures according to international law in order to protect Iran’s national security and the Islamic Republic of Iran," Iranian Foreign Ministry spokesman Esmail Baqaei said Monday, according to the state-run Fars News Agency. "Our goal is to pave the way for a secure passage in this waterway. We need a certain period of time to discuss with the other sides this important matter."

The U.S. and Iran said Sunday they reached a memorandum of understanding to halt hostilities for 60 days while negotiations continue on a final peace agreement. The full text has not yet been published, but Trump said the U.S. Navy would lift its blockade of Iranian ports and that the Strait of Hormuz would reopen without tolls.

"The Deal with the Islamic Republic of Iran is now complete. Congratulations to all!" Trump wrote Sunday on Truth Social. "I hereby fully authorize the toll-free opening of the Strait of Hormuz, and, simultaneously herewith, authorize the immediate removal of the United States Naval blockade. Ships of the World, start your engines. Let the oil flow!"

Vance told CNBC on Monday he expects the deal will open the Strait of Hormuz without tolls "for the long-term."

"Our expectation is that the strait is going to be opened in a toll-free way for the long-term, and that’s the sort of thing that we’re going to figure out in these technical negotiations," Vance said. "There are a lot of very important details to figure out. We’re actually going to sit at the table and discuss together and figure out a path forward on these details."

However, Fars reported that Tehran will allow free transit through the Strait of Hormuz during the 60-day negotiation period but plans to impose fees afterward.

Iranian officials have argued the charges are service fees rather than transit tolls, saying the money would pay for navigation, environmental protection, and other services provided by Iran and Oman.

Baqaei also said that "fees" will be charged.

"It’s full services that will be offered in order to keep and maintain the environment," Baqaei said. "So many other services will be offered by Iran and Oman, and this will cost money. Accordingly, the fees will be there and this is clear."

In late May, the U.S. warned Oman against participating in any effort with Iran to impose a toll, and Treasury Secretary Scott Bessent said Oman's ambassador had told him there were no plans to impose such charges.

Senior administration officials speaking on background told reporters Monday that about 25 ships a day are now passing through the strait, Politico reported. The officials said they expected traffic to increase to 50 ships a day "pretty quickly."

Officials said they expect a final agreement to include a full reopening of the strait beyond the 60-day period. Reopening will only be possible once all of the mines are cleared, they added.

"By Friday, everything will be fully open, I think," a senior official said, according to Politico. "It will adjust very, very quickly, and I think, obviously, the prioritization will be on the heavy tankers, you know, the gas, the oil. So, I think that will actually flow very quickly."

The Joint Maritime Information Center, a service the U.S. Navy runs to issue security updates and risk assessments for commercial shipping, said Monday the U.S. blockade of Iranian ports will remain in place until the ceasefire agreement is formally implemented Friday.

The advisory instructed seafarers and shipping companies not to attempt transits without authorization. It also maintained the maritime threat level in the Strait of Hormuz at "SEVERE."