Trump said in a statement posted on Truth Social that the Navy had informed him the mine-clearance operation was complete. He warned that any ship or boat attempting to place additional mines would be "immediately and systematically destroyed,” describing Washington’s policy toward new mine-laying activity as one of "zero tolerance.”

The president also said the U.S. Space Force was monitoring the Strait of Hormuz, linking that surveillance to wider U.S. monitoring of Iranian nuclear facilities. His comments did not provide operational details about the mine-clearance mission, including the number of mines encountered, the duration of the operation or the naval units involved.

The announcement comes as international attention remains focused on restoring secure navigation through the strategically important waterway. The Strait of Hormuz connects the Persian Gulf with the Gulf of Oman and is a critical route for energy exports from Gulf producers, making disruption there a concern for governments, shipping companies and global energy markets.

Diplomatic efforts were also under way Tuesday. Pakistani Interior Minister Mohsin Naqvi said Pakistan and Iran had achieved "significant progress” during discussions focused on the U.S.-Israeli conflict with Iran and possible steps toward ending hostilities.

Naqvi accompanied Pakistan’s army chief, Field Marshal Syed Asim Munir, during a daylong mission to Tehran. According to Pakistan’s military, Munir met Iranian President Masoud Pezeshkian and other senior Iranian officials, with discussions covering measures to prevent further escalation, reopen the Strait of Hormuz and accelerate efforts to end the conflict.

"The Iranian President candidly shared his government’s perspective,” Naqvi said, describing the discussions as a constructive exchange on the issues separating the parties.

Pakistan’s military said the two sides also exchanged views on regional stability and ways to reach a negotiated settlement. Munir had spoken with Trump ahead of his Tehran visit, adding significance to Islamabad’s intermediary role between Washington and Tehran.

The diplomatic discussions and Trump’s announcement place maritime security at the center of parallel military and political efforts surrounding the conflict. Diplomat News Network could not independently verify the U.S. assessment that all mines had been cleared from international waters, and no separate Iranian confirmation of Trump’s announcement was immediately available.

Any sustained reopening of the Strait would depend not only on mine clearance but also on broader security conditions and confidence among commercial shipping operators. Pakistan’s talks with Iranian officials indicate that restoring navigation has become part of wider negotiations aimed at reducing regional tensions and establishing a pathway toward a negotiated settlement.