Reactions to the September 11 attacks

The September 11 attacks were condemned by world leaders and other political and religious representatives and the international media, as well as numerous memorials and services all over the world. The attacks were widely condemned by the governments of the world, including those traditionally considered hostile to the United States, such as Cuba, Iran, Libya, and North Korea. However, in a few cases celebrations of the attacks were also reported, and some groups and individuals accused the United States in effect of bringing the attacks on itself. These reports have been uncorroborated and many have been linked to unsubstantiated conspiracy theories.

Many countries introduced anti-terrorism legislation and froze the bank accounts of businesses and individuals they suspected of having connections with al-Qaeda and its leader Osama bin Laden, the perpetrators of the attacks.