The Saudi-dominated Gulf Cooperation Council (GCC) has condemned a law passed by the United States Congress last week that would allow the families of victims of the Sept. 11 attacks to sue the kingdom's government for damages.

The head of the six-nation GCC said the law was "contrary to the foundations and principles of relations between states and the principle of sovereign immunity enjoyed by states."

"Such laws will negatively affect the international efforts and international cooperation to combat terrorism," GCC Secretary General Abdullatif al-Zayani said in a statement.

The U.S. House of Representatives passed the "Justice Against Sponsors of Terrorism Act," known as JASTA, on Friday but the White House has threatened to veto the measure.