The Gaza flotilla raid was a military operation by Israel against six civilian ships of the "Gaza Freedom Flotilla" on 31 May 2010 in international waters in the Mediterranean Sea. Nine activists were killed in the raid. The flotilla, organized by the Free Gaza Movement and the Turkish Foundation for Human Rights and Freedoms and Humanitarian Relief (İHH), was carrying humanitarian aid and construction materials, with the intention of breaking the Israeli blockade of the Gaza Strip.