24 hours in pictures

Silao, Mexico: Pope Benedict XVI wears a Mexican hat as he arrives to lead the holy mass celebration at the Parque del Bicentenario Photograph: Osservatore Romano/AFP/Getty Images

New York, US: Women participate in the annual Greek Independence Day parade Photograph: Andrew Burton/Getty Images

Jerusalem: Ultra-Orthodox Jews collect water from a mountain spring to be used in baking unleavened bread, known as matzoth, for the Maim Shelanu (Rested Water) ceremony Photograph: Menahem Kahana/AFP/Getty Images

Cairo, Egypt: A woman carries a picture of a slain relative during a protest at the Egyptian People's Council a day after deadly clashes at a football match Photograph: Nasser Nasser/AP

Antigua Guatemala, Guatemala: Catholic faithfuls take part in a procession during the fifth Sunday of Lent Photograph: Johan Ordonez/AFP/Getty Images

Santiago de Cuba, Cuba: A girl wearing a ballet dress plays on the street Photograph: Ramon Espinosa/AP

Barcelona, Spain: Sikhs gather for a protest, begging for mercy and claiming a violation of human rights against the Sikh people in Punjab Photograph: Luis Tato/Demotix/Corbis

Dhaka, Bangladesh: Political leaders and cultural activists attend a torch rally to pay homage to people killed in a massacre Photograph: Abir Abdullah/EPA

New Delhi, India: A Tibetan exile runs through a street after setting himself on fire during a protest against the upcoming visit of the Chinese president, Hu Jintao Photograph: Reuters

Paris, France: Women throw their bras in the air during a 'Spring cleaning' event organised by Pink Bra Bazaar which campaigns to raise breast cancer awareness Photograph: Thomas Samson/AFP/Getty Images

Dakar, Senegal: Supporters of opposition presidential candidate Macky Sall show defaced ballots of incumbent president, Abdoulaye Wade Photograph: Reuters

London, UK: Artists arrive at the Royal Academy of Arts to hand in works completed for the 244th Summer Exhibition Photograph: Dan Kitwood/Getty Images