Madleen Flotilla Hijacked by Israel: Greta Thunberg and 11 Activists Seized in International Waters

Twelve unarmed human rights defenders, among them Swedish climate leader Greta Thunberg, French-Palestinian MEP Rima Hassan, and activists from six other nations, were forcibly seized by Israeli Occupation Forces (IOF) during a pre-dawn raid on the UK-flagged aid ship Madleen. The vessel was en route from Sicily to Gaza carrying essential humanitarian supplies: medical kits, baby formula, food staples, water filters, diapers, and lifesaving medicine.

Witnesses describe speedboats converging on the flotilla at 4:30 AM local time, drones overhead deploying an irritant white chemical, and soldiers ordering crew to discard their phones into the sea. Within minutes the ship’s transponder and communications were silenced. Survivors’ accounts and livestream footage confirm this dramatic escalation against civilians engaged in a peaceful mission.

Climate activist Greta Thunberg, center, waits to board the Madleen boat.
Climate activist Greta Thunberg, center, waits to board the Madleen, before setting sail for Gaza along with activists of the Freedom Flotilla Coalition, departing from the Sicilian port of Catania, Italy, Sunday, June 1, 2025. (AP Photo/Salvatore Cavalli)

Widespread Outrage Over Legal Breach

Under the United Nations Convention on the Law of the Sea (UNCLOS Article 92), a vessel on the high seas falls under the exclusive jurisdiction of its flag state. The Madleen, registered in the United Kingdom, was therefore British territory. International legal experts uniformly condemn the interception as an act of piracy and kidnapping.

“Seizing a flagged humanitarian ship without cause or warning is piracy in the truest sense. This demands an immediate and robust diplomatic response,” said maritime law specialist Dr. Elias Maroun.

Despite clear obligations, the UK Foreign Office has yet to issue a strong protest. Demonstrations have erupted outside Downing Street and the Foreign Office, calling on the government to invoke its legal rights and demand the immediate release of its nationals and crew.

Systemic Media Bias and Euphemistic Reporting

Instead of highlighting these humanitarian facts, much of the Western press has simply repeated Israeli talking points. For example, ABC News headlined its coverage “Israel diverts aid boat carrying Greta Thunberg”, parroting the Israeli Foreign Ministry’s claim that the activists were staging a “media provocation”.

Major Western news outlets have come under fire for repeating Israeli government narratives without scrutiny. The BBC devoted nearly 79% of its opening paragraphs to quoting Defense Minister Yoav Gallant’s claims that the flotilla was a “hate ship,” before acknowledging its humanitarian cargo. The Associated Press initially described the operation as a mere “diversion,” a term later walked back after public backlash.

Other networks, including Sky News and Tagesschau, continue to frame the incident as enforcement of a legal blockade, disregarding the overwhelming evidence of unlawful boarding at sea. Activist networks and social media channels have stepped in to share raw footage and eye‑witness testimonies, exposing the discrepancy between on‑the‑ground events and mainstream narratives.

The ship was an extension of UK territory under UNCLOS Article 92. Its attack was not only piracy, it was an assault on British sovereignty. Meanwhile, Sky News, Tagesschau, and others parroted Israeli narratives, burying the story’s moral and legal core.

Activists waving Palestinian flags from Madleen board.
Activists waving Palestinian flags during boarding, symbolizing media framing. (Politico/EPA)

Honoring Courage Amid Silence

At 22, Greta Thunberg has transitioned from youth climate protests to frontline humanitarian activism. “I would rather be accused of breaking a siege than remain silent as children starve,” she told supporters before departure. Meanwhile, Rima Hassan and the French delegation emphasized solidarity: “We sail not for headlines but for human lives.”

Their bravery stands in stark contrast to the political inertia of many Arab governments, whose diplomatic silence has drawn criticism from human rights circles.

The Global Web of Injustice: Intersectionality in Focus

Everything is connected. From ICE raids detaining immigrants in US cities to IOF operations uprooting families from their homes, state violence employs similar tactics worldwide. Activists urge global solidarity:

“If we protest one border, we must protest them all,” said a spokesperson for the Freedom Flotilla Coalition. “Our struggles share roots in systemic oppression and militarized control.”

This intersectional framework underscores the need for unified resistance against human rights violations, wherever they occur.

Who Are the Madleen Detainees?

  • Sweden: Greta Thunberg
  • France: Rima Hassan, Baptiste André, Omar Faiad, Pascal Maurieras, Yanis Mhamdi, Reva Viard
  • Netherlands: Mark van Rennes
  • Spain: Sergio Toribio
  • Germany: Yasemin Acar
  • Brazil: Thiago Ávila
  • Turkey: Şuayb Ordu

Families and supporters have launched coordinated campaigns, urging citizens to contact their ministries of foreign affairs and demand urgent consular access, medical assistance, and a formal protest to Israel.

Activists wearing life jackets as Israeli naval forces board the Madleen.
A screenshot from a security video shows the moment Israeli special forces board the Madleen, an aid vessel seeking to break Israel’s blockade of Gaza, on June 9, 2025. (PBS Coverage)

A Call for Immediate Action

Diplomatic Pressure: Contact your country’s Foreign Ministry to demand the safe release of Madleen’s crew. Highlight the UK’s rights under UNCLOS and insist on formal diplomatic démarches.

Global Protests for Captive Humanitarians on Madleen: Join or organize demonstrations in major cities. Use the slogans “There Shouldn’t Be a Siege” and “The Flotilla Is a Lifeline” to center the humanitarian imperative.

Media Accountability: Demand that news outlets cease using euphemisms like “diverted,” report on the use of chemical irritants, and contextualize the 2010 Mavi Marmara attack.

Legal Recourse: Petition the International Criminal Court to investigate this act of piracy and related war crimes in Gaza.

The Long Shadow of Past Violence

In 2010, nine activists were killed aboard the Mavi Marmara when Israeli commandos stormed the vessel. In May 2025, drones attacked the Madleen’s generator in Maltese waters, foreshadowing today’s broader crackdown. These incidents reflect a persistent strategy to suppress civilian-led humanitarian initiatives.

Regional Solidarity: Tunisia’s Convoy of Steadfastness

In parallel to the sea mission, Tunisia will launch a land convoy named Steadfastness on June 14. Traveling through Libya and Egypt, it aims to breach Gaza’s land crossings with medical teams, supplies, and volunteers. Thousands have pledged to join, signaling widespread regional support.

Climate activist Greta Thunberg flanked by Thiago Avila.
Climate activist Greta Thunberg flanked by Thiago Avila from a human rights organisation meets with journalists in Catania, Italy, Sunday, June 1, 2025. (AP Photo/Salvatore Cavalli)

Take Action Now

The seizure of the Madleen is not an isolated maritime incident, it is a stark manifestation of a broader crisis of impunity. As international waters become battlefields for humanitarianism, the world must choose between silence and action. The lives of 12 activists hang in the balance, but their mission reflects the aspirations of millions demanding justice.

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