Minab School Strike: US Tomahawk Cruise Missile Kills At Least 156 at a Primary School

What Happened

On February 28, 2026, the first day of the coordinated US-Israeli military strikes against Iran, a Tomahawk cruise missile struck the Shajareh Tayyebeh primary school for girls and boys aged 6 to 13 in Minab, a city in Iran's Hormozgan province. On April 9, 2026, the Minab prosecutor put the final death toll at 156, including 120 schoolchildren (73 boys and 47 girls), 26 educators, all women, and seven parents. An independent count cited by the UN fact-finding mission gives 157 dead, including 123 children aged 13 or younger.

The school stood next to an Islamic Revolutionary Guard Corps naval complex, about 72 metres from its nearest facility, but had operated since about 2016 in a separately walled compound with its own street entrance, murals, signage and a playground. Survivors told Iranian media it was struck twice in quick succession; satellite imagery shows seven detonation points across the school and the adjacent base. The UN Independent International Fact-Finding Mission on Iran concluded that the school building was the intended point of impact and that the damage did not result from an errant strike or collateral damage. Reported internal US findings attribute this to the site having been misclassified as an IRGC facility on outdated data; the mission characterised the US failure to verify the target as recklessness that went beyond mere negligence. No source shows that US forces knowingly chose to strike a school.

Independent Investigations

Four independent investigations reached the same conclusion regarding US responsibility:

• New York Times: Confirmed Tomahawk cruise missile fragments at the site
• CBC: Independent verification of missile origin
• NPR: On-the-ground reporting confirming strike details
• BBC Verify: Open-source intelligence analysis confirming US Tomahawk

The convergence of these independent investigations by credible organizations leaves little doubt about responsibility.

Context Within the Iran War

The Minab school strike occurred on the first day of the 2026 Iran war. As of March 21, 2026, the Hengaw Documentation Center reported at least 5,900 killed in the conflict, including 595 confirmed civilians.

Legal Analysis

Schools are among the most clearly protected objects under international humanitarian law. The legal framework is unambiguous:

Rome Statute Article 8(2)(b)(ix) makes it a war crime to intentionally direct attacks against "buildings dedicated to religion, education, art, science or charitable purposes... provided they are not military objectives." An elementary school full of children during school hours is the paradigmatic example of a protected educational building.

Additional Protocol I, Article 52 establishes that civilian objects — including schools — shall not be the object of attack. The burden of proof falls on the attacker to demonstrate that a civilian object has been converted into a military objective.

The UN fact-finding mission's finding. In its report A/HRC/63/61 (September 2026), the UN Independent International Fact-Finding Mission on Iran found reasonable grounds to believe that the US carried out the strike, that the US failed to do everything feasible to verify the target was a military objective, and that the strike "amounts to the war crime of making a civilian object the object of an attack." It found the US acted with recklessness (dolus eventualis), relying on outdated targeting data despite the school's readily identifiable features. Amnesty International separately said the strike "must be investigated as a war crime."

The main defence argument is mistake of fact: if targeteers genuinely believed, on a database entry, that the coordinates were an IRGC facility, they did not intend to attack a civilian object. The Rome Statute's mental element (Article 30) is stricter than the recklessness standard applied in ICTY case law, which the mission used. That gap is why this entry is graded Critical with the evidence threshold at potential: the mission found recklessness, which international criminal tribunals have accepted for unlawful attacks, but Rome Statute Article 30 requires intent and knowledge, and the mission's finding is not a judicial ruling.

UNESCO described the strike as "a grave violation of humanitarian law."

Why This Grade

Graded Critical, evidence threshold potential (reviewed 2026-10-04). The facts below are grave and well established; what is not established to the Article 58 standard is the Rome Statute mental element. The UN mission found the school was the intended point of impact but only recklessness as to its civilian character (A/HRC/63/61, para 125), and recklessness does not satisfy Article 30's intent-and-knowledge requirement for Article 8(2)(b)(ii)/(ix). The same standard is applied to the Lamerd sports-hall strike. A finding of intent or knowledge would return this entry to the International Crime grade.

• Scale of civilian death: At least 156 people, including 120 to 123 children, killed in a single strike, among the deadliest attacks on a school in modern warfare.
• Clear protected status: An elementary school during school hours is among the most unambiguous protected objects under IHL.
• Attribution: Four independent media investigations, the reported preliminary US military inquiry and the UN fact-finding mission attribute the strike to a US Tomahawk missile.
• UN finding: The UN fact-finding mission found reasonable grounds to believe the strike amounts to a war crime, with the school building as the intended point of impact.
• Age of victims: Most victims were children aged 6 to 13. The Geneva Conventions and the Convention on the Rights of the Child afford special protection to children in armed conflict.

International Law Violations

1. Rome Statute Article 8(2)(b)(ii) and (ix): Directing attacks against a civilian object and a building dedicated to education. The UN fact-finding mission found reasonable grounds to believe the strike amounts to a war crime on a recklessness standard; whether Article 30's intent-and-knowledge requirement is met is unresolved.
2. Customary IHL (distinction and precautions; AP I Arts. 48, 52, 57): Failure to do everything feasible to verify the target was a military objective.
3. Rome Statute Article 8(2)(b)(iv): A fallback reading only; the mission found the school itself was the intended point of impact.

The lawfulness of the war itself is addressed in the crime of aggression entry.

Iran is not a party to the Rome Statute. It could accept the Court's jurisdiction ad hoc under Article 12(3), but no such declaration had been found as of October 2026.

May 2026 Update: CENTCOM Congressional Testimony

On May 19, 2026, CENTCOM Commander Admiral Brad Cooper testified before the House Armed Services Committee. Rep. Adam Smith, the committee's ranking Democrat, pressed Cooper to acknowledge that the United States killed more than 150 schoolgirls at Minab. Cooper confirmed a formal military investigation is underway — his first public confirmation of a US-led inquiry — but refused to acknowledge responsibility or provide a completion timeline.

Cooper's defense: "The school itself is located on an active IRGC cruise missile base, so it's more complex than the average strike." He called it "a very complex investigation." This framing was immediately challenged by Smith and other lawmakers, who noted that independent investigators had already established the school was separated from the military compound by a wall constructed between 2013 and 2016 — and that the school had operated in its own walled compound since about 2016.

A Pentagon inspector general report has separately reopened scrutiny of the incident, according to Middle East Monitor and Global Security reporting from May 19.

The gap between independent conclusions (US Tomahawk, established by NYT, CBC, NPR, BBC Verify, and eight other munition experts) and the government's posture — nearly three months after the strike with no acknowledgment of responsibility — raises serious concerns about compliance with the obligation to investigate credible reports of civilian harm.

Update: The Investigation Nobody Has Seen (July–September 2026)

NBC News reported on June 18, 2026, that CENTCOM had completed its internal investigation and that senior officials were finalizing it before briefing lawmakers, amid concern the results would be classified. On July 13, Sen. Kirsten Gillibrand and 24 colleagues wrote that the investigation had reportedly been submitted in April and remained under senior military review, demanding its prompt public release: "There is no justification for withholding an unclassified accounting of what happened, what went wrong, and what the Department is doing to prevent recurrence." As of September 3, Reuters reported, the findings still had not been released to lawmakers.

On September 19, Bloomberg — as summarized by ThePrint — reported that officials involved in the investigation described the strike as a "cascade of preventable failures": the site was misclassified as an IRGC naval facility on the basis of satellite imagery not updated for years; a 2019 intelligence analyst's note about the site's change of use never reached the database feeding the targeting system; the Maven Smart System was relied upon under the time pressure of an opening assault on more than 1,000 targets; and civilian harm mitigation staffing had been cut drastically. These findings come from anonymous officials and have not been confirmed by the Pentagon. A second mass-civilian-casualty incident under investigation — a September 1 strike on a wedding in Sirik, in the same province — underscores what is lost when investigation results are withheld.

Update: What the UN Fact-Finding Mission Found, and What It Did Not (September 2026)

The Independent International Fact-Finding Mission on the Islamic Republic of Iran, created by Human Rights Council resolution S-39/1, issued its report (A/HRC/63/61, advance edited version dated September 21, 2026) to the Council's 63rd session. Its findings on Minab, as the report states them, are as follows.

• The school building was the intended point of impact. The mission "concludes that the building of the school was the intended point of impact and that the damage did not result from an errant strike or collateral damage from the attack on the adjacent Islamic Revolutionary Guard Corps complex" (para 89).
• The munition and the attacker. Weapons analysis of video and of recovered remnants identified an RGM/UGM-109 Tomahawk Land Attack Missile (para 90). The mission relied on the area of operations, the weapon, corroborated reports of a preliminary US military inquiry, Adm. Brad Cooper's May 19, 2026 statement that the strike "correlates" with a US strike, and the fact that "the United States is the only party to the conflict that possesses Tomahawk missiles." On that basis it found reasonable grounds to believe the US carried out the strike (paras 95, 98).
• The toll. It cites the Minab prosecutor's final count of 156 (120 schoolchildren, 26 women educators, 7 parents, a bus driver and a pharmacy technician) and "credible independent information" of 157 dead, including 123 children aged 13 or younger (paras 92-93).
• The IHL violation. The US "failed in its obligation to do everything feasible to verify that it was a military objective"; updating targeting information is a feasible precaution, so the strike violated distinction, the prohibition on making civilian objects the object of attack, and the principle of precaution (para 124).
• The mental element: recklessness, not intent. The mission found that the US "acted wilfully, that is, with the requisite mental element of recklessness (dolus eventualis)". It based this on senior US leaders' public statements dismissing binding IHL obligations, the deprioritisation of civilian-harm mitigation, apparent reliance on outdated targeting data, and the school's readily identifiable features. It concluded that the US "directed the strikes at the building of the school while being aware of a substantial risk of striking a civilian object and acting recklessly as regards the possibility that this would happen" (para 125).
• The conclusion and its limits. On "the available evidence, which does not include responses by the United States to the Mission's requests for information, or a full and public disclosure by the United States of the outcomes of its internal investigation", the mission found reasonable grounds to believe the strike "amounts to the war crime of making a civilian object the object of an attack" (para 126). The US did not answer its letters of June 16 and June 24, 2026 (para 97).

How this bears on the grade. The mission applied a customary-law standard under which recklessness can satisfy "wilfully". It did not find that US forces knew the building was a school or intended to attack civilians. The Rome Statute's Article 30 requires intent and knowledge, and the elements of Article 8(2)(b)(ii) and (ix) require that the perpetrator intended the civilian object to be the object of the attack. A recklessness finding therefore does not establish every element of the Rome Statute crime at the archive's "probable" threshold. That is why this entry is graded critical, with the international-crime question kept at "potential" pending the full US investigation. Human Rights Watch called on March 7, 2026 for the strike to be investigated as a war crime, and the mission's report is the most authoritative application of the law to these facts so far. Neither is a judicial finding.