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U.S. Boards Iranian Tanker as Tehran Targets Subsea Cables in Strait of Hormuz

President Trump signals a short window for a diplomatic resolution as the U.S. military enforces maritime blockades in the Gulf of Oman.

May 21, 2026 at 1:00 PM

Tensions between Washington and Tehran intensified over the last 24 hours as the U.S. military transitioned to active maritime enforcement. On Wednesday, U.S. Central Command confirmed that forces boarded the Iranian-flagged oil tanker M/T Celestial Sea in the Gulf of Oman. After a search for suspected blockade violations, the vessel was released with orders to alter its course. Simultaneously, reports emerged that Iran is broadening its leverage in the Strait of Hormuz by targeting subsea cable infrastructure, demanding 'protection fees' and maintenance permits from foreign digital operators in the critical communications corridor. President Donald Trump has indicated that while the U.S. remains open to talks, the window for a diplomatic breakthrough is narrowing. Trump stated he would wait 'a few days' for Iran’s response but reiterated that no sanctions relief would be granted prior to a signed agreement. Meanwhile, the Islamic Revolutionary Guard Corps (IRGC) seeks to project authority over global trade flows, claiming it managed the transit of 26 vessels through the Strait of Hormuz within the last day. On the diplomatic front, regional neighbors are heightening efforts to prevent a total collapse of the current ceasefire extension. Turkish President Recep Tayyip Erdogan held a phone call with President Trump to advocate for a 'reasonable solution,' while Pakistani Interior Minister Mohsin Naqvi met with IRGC commanders in Tehran to facilitate communication. Iranian President Masoud Pezeshkian maintains that Tehran is open to a 14-point proposal for diplomacy, provided it is conducted without military coercion.

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