Kim Ah-hyun and Kim Dong-hyun, activists who were detained by Israeli forces after boarding a humanitarian aid vessel bound for the Gaza Strip, speak to reporters upon arriving at Incheon International Airport, May 22.

Testimonies from international activists detained and deported by Israeli forces after boarding a Gaza-bound humanitarian vessel have provoked outrage far beyond the Middle East. According to several activists, including a South Korean participant, they were beaten while kneeling with their hands restrained, repeatedly struck in the face and subjected to electric shocks, confinement and even sexual humiliation. Some reported injuries severe enough to cause hearing loss. Videos released after the incident appear to show activists face down on the floor while Israeli soldiers violently grab and restrain them.

If these allegations are true, this was not merely a harsh security operation. It was an act of state violence that directly challenges the most basic principles of international human rights.

There may be legitimate debate over the tactics and judgment of humanitarian flotillas attempting to reach Gaza. Any vessel approaching a blockaded conflict zone must anticipate the possibility of military interception. But no circumstances can justify the abuse of unarmed civilians. Even in war, the protection of civilians remains a foundational principle of international law. The Geneva Conventions require humane treatment not only of civilians but even of prisoners of war. Allegations of physical assault, torture and sexual abuse cannot be excused under any legal or moral framework.