Iran has directed vessels passing through the Strait of Hormuz to follow newly assigned lanes, warning that parts of the main passage may be unsafe due to suspected sea mines.

The instruction was issued by the Islamic Revolutionary Guard Corps, which said the move is meant to prevent accidents and protect ships navigating the strategic waterway. Specific alternative entry and exit paths were outlined for vessels moving in and out of the strait.

The advisory comes after Tehran agreed to temporarily reopen the route under a two-week ceasefire reached with the United States of America. The deal was concluded shortly before a deadline set by U.S. President Donald Trump, who had demanded that Iran restore access to the passage.

Iran had effectively restricted traffic through the strait since early March, a decision that unsettled global energy markets and pushed oil prices higher amid fears of supply disruption.

With the truce now in place, maritime movement is expected to resume, but under tighter safety guidance as authorities seek to reduce risks while the temporary pause in tensions continues.