International condemnation is mounting after Israeli forces intercepted a humanitarian flotilla bound for Gaza, with activists and several governments accusing the military of acting unlawfully in international waters.

The Global Sumud flotilla, made up of more than 20 vessels and around 175 activists from dozens of countries, was attempting to deliver aid and challenge Israel’s long-standing naval blockade of Gaza when it was stopped near the Greek island of Crete.

Reports from those on board say Israeli forces boarded the vessels, disabled engines and detained crew members while the ships were still far from Israeli waters.

Activists have alleged the operation involved excessive force and mistreatment, with some reporting injuries and poor conditions during detention.

Israel has defended the move, saying the flotilla was attempting to breach a lawful maritime blockade and posed security concerns, while offering to redirect aid through official channels.

The incident has triggered strong backlash internationally, with countries including Spain, Brazil and Ireland condemning the interception and calling for the release of those detained.

Human rights experts have also questioned the legality of the operation, particularly given it took place hundreds of kilometres from Gaza, raising concerns about violations of international maritime law.

The flotilla is part of a long-running effort by international activists to challenge the blockade of Gaza, which has been in place since 2007 and remains a focal point of global political tension.

The latest confrontation is expected to further strain diplomatic relations and intensify debate over humanitarian access, international law and the ongoing conflict in the region.