Iran has condemned the recent capture of its tanker, the M/V Touska, by the US Navy, labelling the act as “piracy.” The seizure occurred near the Strait of Hormuz on April 20, 2026, when the US military reported that the Iranian vessel did not heed warnings to alter its course. Following this incident, Iran reportedly seized two foreign commercial vessels and brought them to its shores.

The US military, via its Central Command (CENTCOM), stated that the Touska was intercepted while attempting to navigate towards the Iranian port of Bandar Abbas. Reports indicated that the US imposed a naval blockade on Iranian ports starting April 13 and had issued multiple warnings to the vessel before taking action. The US claims the ship defied these warnings during a six-hour period before the seizure.

Tohid Asadi, a correspondent from Al Jazeera, noted that Iranian authorities have hinted at possible charges and transit fees for vessels passing through the strategic chokepoint, reflecting Iran’s ongoing efforts to assert control over maritime traffic in the area.

Iran’s Continued Maritime Strategy

Tehran’s actions represent an escalation in its maritime strategy amid heightened tensions with the US. Iranian state media revealed that the two commercial vessels captured were claimed to have violated maritime regulations, with Iranian officials suggesting that their actions were justified in response to what they consider aggressive US behaviour.

Moreover, Iranian Defence representatives reiterated that passage through the Strait requires permission from the Islamic Revolutionary Guard Corps (IRGC). This statement underlines Iran’s commitment to controlling its territorial waters, a move that has drawn international scrutiny.

The recent seizure of vessels is part of a larger context of ongoing hostilities, following a series of military confrontations that commenced with airstrikes by the US and Israel on Iranian targets on February 28, 2026. Since then, Iran has allowed limited access to vessels from countries with agreements with Tehran, further complicating shipping in the region.

Legal Implications Under International Law

The accusations of piracy arise amid interpretations of international maritime law, particularly the United Nations Convention on the Law of the Sea (UNCLOS), which defines acts of piracy and stipulates the legal framework for maritime operations. Legal experts have indicated that for an act to be classified as piracy, it must involve private gain, which complicates the US’s justification for its seizures under the current conflict.

Professor Jason Chuah from City University of London stated that while the US may be acting under sanctioned enforcement during a time of conflict, categorising their actions as piracy does not align with UNCLOS definitions. US law provides conditions under which the Coast Guard can initiate seizures to enforce laws on the high seas.

In a response highlighting the tension surrounding maritime operations, the Pentagon confirmed the seizure of another sanctioned tanker, the M/T Tifani, in the Bay of Bengal. This ongoing pattern of maritime interceptions signals a broader strategy by the US to curb Iranian oil transportation while Iran warns of retaliatory measures against perceived injustices.

Diplomatic Repercussions and Future Actions

Iran’s government has vocally protested the US’s recent military actions, warning of potential retaliatory strikes as tensions escalate. A spokesperson for Iran’s military command stated that there will be a response to what they term “armed piracy” by US forces. This threat further underscored the fragility of diplomatic relations between Iran and the US following ongoing negotiations on related issues.

On April 21, Iranian Foreign Minister Abbas Araghchi characterised the seizure as a significant violation of a previously discussed ceasefire agreement, intensifying the focus on diplomatic efforts that have yet to yield positive results. Iranian officials have indicated uncertainty about participating in any future talks with the US, citing the situation as characterised by aggression and piracy.

The evolving situation places additional strain on maritime security in the region as both nations prepare for potential further confrontations. Analysts suggest that the conflict’s dynamics will be closely monitored, particularly concerning shipping lanes critical to global trade, enhancing the need for diplomatic engagement amidst rising tensions.

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