Iranian envoy to UN condemns US capture of Iran's vessel, urges accountability

Says capture amounts to piracy, serious breach of international law, violating ceasefire agreement

Amir-Saeid Iravani, Iran's Ambassador to the United Nations, addresses members of the United Nations Security Council on resolutions on the situation in Iran and the Middle East at U.N. headquarters in New York City, U.S., March 11, 2026. PHOTO: REUTERS

Iran has accused the United States of carrying out an unlawful attack on an Iranian commercial vessel in the Sea of Oman on April 19, warning the United Nations Security Council that the incident amounts to piracy and a serious breach of international law.

In a letter to UN Secretary-General António Guterres and Security Council President Jamal Fares Alrowaiei on April 21, Saeed Iravani said US action against the vessel “Touska” requires UN action and accountability, Iranian media reported.

Iravani said US forces targeted the vessel “Toska”, alleging the use of "coercion, intimidation, and the reckless endangerment of the vessel’s crew and their families," describing it as a “grave violation” of international law, including the prohibition on aggression.

Read: Iran says no talks with US until blockade lifted despite ceasefire extension

He said it constituted a breach of a ceasefire agreement reached earlier this month. Tehran also argued the attack qualifies as an act of aggression under UN General Assembly Resolution 3314 which defines an act of aggression as a state allowing its armed forces to attack another state’s ships or aircraft, used to legally frame acts of military aggression under international law.

The letter further claimed the operation reflects “piracy in nature” and warned it could escalate tensions and threaten the security of key maritime routes.

Iran urged the Security Council and UN secretary-general to condemn the incident, and ensure "full accountability for those responsible, and demanding the US to immediate and unconditional release of the vessel, its crew and their families, and all those affected by this incident."

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