On June 14, 2010, the International Committee of the Red Cross (ICRC) called for an end to the Israeli blockade of the Gaza Strip as a violation of international humanitarian law under Article 33 of the Geneva Conventions. The failure of efforts by private entities to end the blockade caused the ICRC to forego their traditionally neutral stance and speak out against it. International tensions concerning the Gaza Strip escalated following the May 2010 raid of several Turkish aid ships on their way to Gaza by Israeli forces. The raid left nine pro-Palestinian activists dead. Israel subsequently refused any international inquiries into its activities.