The Gaza Flotilla
Two voyages toward Gaza in 2025 — what happened, as reported, with each side's account attributed.
Background
From late 2023, Thunberg publicly supported pro-Palestinian causes, appearing at demonstrations and accusing Israel of genocide in Gaza — language Israel and its supporters reject. In 2025 she joined two maritime efforts to challenge Israel’s naval blockade of Gaza and deliver aid. This page describes the events as reported by wire services and the participants; characterizations (“illegal blockade,” “publicity stunt,” “genocide”) are attributed to their speakers, not asserted by this site.
The Madleen — June 2025
On 1 June 2025 the sailing yacht Madleen, organized by the Freedom Flotilla Coalition, departed Catania, Sicily, for Gaza carrying 12 people including Thunberg, French MEP Rima Hassan, and journalists, with a small cargo of aid (baby formula, rice, medical supplies, per the organizers). On 9 June 2025 Israeli naval forces intercepted the vessel in international waters and towed it to Ashdod; the 12 aboard were detained and deported. Israel’s Foreign Ministry dismissed the voyage as a “selfie yacht”; the organizers called the interception a violation of international law. Thunberg, in a pre-recorded video released at the time, said the crew had been “kidnapped” — her word, reported as her claim.
The Global Sumud Flotilla — September–October 2025
In early September 2025 a much larger flotilla — the Global Sumud Flotilla, described by organizers as 40+ vessels with participants from dozens of countries — departed Barcelona aiming to deliver aid to Gaza and challenge the blockade. Israeli forces intercepted the flotilla in early October 2025 in international waters; AP and Reuters reported around 470–480 participants detained, including Thunberg. On 6 October 2025 Israel deported 171 of them, including Thunberg, to Greece and Slovakia; she landed in Athens that afternoon.
Accounts of the detention differ. Deported activists alleged mistreatment in custody — sleep deprivation, limited food and water, rough handling — claims reported by their representatives and some media. Israel’s Foreign Ministry denied the allegations, said all legal rights were respected, and called the flotilla a “PR stunt.” This site records both accounts without adjudicating between them.
Upon arrival in Athens, Thunberg told journalists: “That this mission has to exist, it’s a shame! It is a shame!” and urged the world not to look away from Gaza — her words, reported by AP.
Aftermath
The interceptions drew demonstrations in cities worldwide and sharp political debate: supporters called the flotillas humanitarian action against a blockade they deem illegal; critics called them symbolic provocations that delivered negligible aid. Thunberg’s participation cemented her identification with the pro-Palestinian cause — and intensified the criticism documented on Criticism and Response.
Source notes
Events and figures are from AP and Reuters wire reporting (June and October 2025), Israeli Foreign Ministry statements, and the flotilla organizers’ statements. Participant and vessel counts vary between sources and are given as reported ranges. Allegations of mistreatment are reported as allegations with the denial noted. No casualty figures or legal conclusions are asserted beyond what the cited reporting states.