France launches war crimes probe over alleged mistreatment of Gaza aid flotilla activists

French authorities have launched a preliminary investigation into allegations of “torture” and “war crimes” linked to the treatment of French activists detained by Israel after taking part in a Gaza-bound aid mission. The inquiry follows complaints made by participants in the Global Sumud Flotilla, who alleged they were subjected to serious abuse while in Israeli custody.

The investigation was opened on Friday by France's national counterterrorism prosecutor’s office (PNAT) after the foreign ministry referred the matter late last month.

Probe follows flotilla interception

The allegations stem from Israel's interception of a Gaza-bound flotilla in international waters on May 18.

Israeli authorities detained about 430 activists from roughly 40 countries after stopping the vessel, which was part of a series of efforts aimed at challenging the blockade on Gaza.

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According to French prosecutors, the investigation will examine claims made by activists regarding their treatment during detention.

Activists allege abuse during detention

Several French nationals who returned home on May 22 described what they characterised as a violent and degrading experience while being held by Israeli authorities.

Among those who spoke publicly were activists who said some participants remained hospitalised in Turkiye after the incident. They told reporters that two of the more than 30 French citizens aboard the flotilla were still receiving medical treatment.

One activist recounted being held in a dark container, alleging that a soldier groped and slapped her, leaving her fearful that she might be raped.

Diplomatic fallout over flotilla incident

The episode also drew international attention after Israeli far-right National Security Minister Itamar Ben-Gvir posted a video mocking the detained activists while they were bound.

The video prompted widespread criticism. France subsequently barred Ben-Gvir from entering the country and joined several other Israeli allies in summoning the Israeli ambassador over the incident.

The newly opened investigation will examine the allegations raised by the activists as French authorities assess whether offences amounting to “torture” or “war crimes” may have occurred.