U.S. citizens are strongly urged to carry a copy of their passport or some form of photo identification with them at all times when traveling in Greece.

There has been a rise in unprovoked harassment and violent attacks against persons who, because of their complexion, are perceived to be foreign migrants. U.S. citizens most at risk are those of African, Asian, Hispanic, or Middle Eastern descent. Travelers are urged to exercise caution, especially in the immediate vicinity of Omonia Square from sunset to sunrise. Travelers should avoid Exarchia Square and its immediate vicinity at all times. The U.S. Embassy has confirmed reports of U.S. African-American citizens detained by police authorities conducting sweeps for illegal immigrants in Athens.