U.S. President Donald Trump has ordered a blockade of the Strait of Hormuz following the breakdown of negotiations with Iran.

Trump said U.S. naval forces would prevent ships from entering or leaving the vital waterway, escalating tensions after talks between Washington and Tehran failed to resolve disputes over Iran’s nuclear programme and regional security.

The Strait of Hormuz is a critical global oil corridor, handling a significant share of the world’s oil shipments, making the move a major flashpoint for international markets.

Iran has warned that any blockade would violate existing ceasefire arrangements and could trigger a strong response, raising fears of renewed conflict in the region.

The development comes amid heightened military activity and growing concerns over global energy supply disruptions as tensions between the two sides deepen.