Thousands of people across Britain gathered to honour and remember the Holocaust victims and mark the 70th anniversary of the liberation of Auschwitz-Birkenau, which was a network of German Nazi concentration camps on Tuesday, 27 January.
Some survivors of the mass genocide also participated in the event.
Joachim Gauck, Angela Merkel, Andreas Vosskuhle, François Hollande and several other politicians, dignitaries and religious leaders joined the survivors during the commemoration ceremony in central London and in Oswiecim, Poland on Tuesday.
Holocaust Memorial Day Trust (HMDT) also hosted an event in central London. Reports suggest that nearly 2,400 events are planned across the continent to remember the victims of the deadly attack.
A Holy Mass has also been arranged at the Centre for Dialogue and Prayer to pay respect to the survivors as well as the dead ones.
More than 300 survivors laid wreaths to pay tribute to almost six million Jews, who were killed by the Nazi regime 70 years ago.