Indonesian journalist Rahendro Herubowo said activists were beaten, shocked with tasers and held in overcrowded detention containers after Israeli forces seized the flotilla near Cyprus on May 18-19. He alleged detainees were denied adequate water and medical assistance during their confinement.

Sri Lankan activist and medic Sameera Mahboobdeen said dozens of activists suffered injuries, including suspected fractures and head wounds, while requests for medical treatment were ignored. She also alleged that several women reported sexual assault during detention.

The Global Sumud Flotilla, consisting of around 50 boats and 400 activists, was attempting to deliver food and medical aid to Gaza by challenging Israel’s maritime blockade.

Malaysia-based group Sumud Nusantara said it has documented allegations of excessive force, sleep deprivation, restricted access to food and water, and prolonged interrogations. The group is coordinating with Malaysia’s Foreign Ministry to pursue legal action and seek an investigation through the International Criminal Court.

Israeli authorities had not publicly responded to the specific allegations contained in the activists’ accounts.