Events commemorating Holocaust Memorial Day are taking place around the world 62 years after the Soviet troops liberated the Auschwitz-Birkenau concentration camp.
The central commemoration was held Saturday at the notorious camp in Poland where Nazis killed more than a million people, mostly Jews, before the end of World War II.
Commemorations in many countries also are honoring the victims of other 20th century atrocities, including those in Bosnia, Cambodia, Rwanda and Kosovo.
The United Nations on Friday adopted a resolution condemning any attempt to deny the Holocaust.
Germany is seeking to make denying the Holocaust a crime in all 27 nations of the European Union. Germany holds the EU presidency until July. The proposed law is aimed at curbing all forms of racial hatred.
Curators of the Auschwitz-Birkenau concentration camp and museum warn the original structures, including the notorious gas chambers are decaying and need repair. Some scholars warn that any new constructions might give fodder to those who deny that Holocaust happened.
Britain is observing its seventh annual Holocaust Memorial Day with the message of "the dignity of difference" aimed at educating people about dangers of anti-Semitism and all forms of discrimination.
Germany has been observing Holocaust Memorial Day since 1996.
Around six million Jews died at the hands of the Nazis during the Holocaust, one of the worst acts of genocide in human history.
Some information for this report provided by AP, AFP and Reuters.