24 hours in pictures

Kolkata, India: Dark rain clouds illuminated by the setting sun create a dramatic scene Photograph: Piyal Adhikary/EPA

Hong Kong, China: Protesters wear white dresses to mourn the death of Chinese labour activist Li Wangyang Photograph: Vincent Yu/AP

Mexico City, Mexico: A man rides his bike in a public fountain during a protest by bicycle enthusiasts over the damage caused by car dependency in the capital Photograph: Marco Ugarte/AP

Berlin, Germany: A German supporter watches his team's opening Euro 2012 match against Portugal. Germany won 1-0. Photograph: Johannes Eisele/AFP/Getty Images

Las Vegas, California, US: An art installation at the Electric Daisy Carnival Photograph: John Locher/AP

Distomo, Greece: Youths, many of them relatives of victims of the Nazi wartime Distomo massacre, take part in a torchlight march on the eve of the 68th anniversary of the killings Photograph: Yannis Behrakis/Reuters

Ansan City, South Korea: A white heron takes care of newly hatched chicks Photograph: Jeon Heon-kyun/EPA

Kharkiv, Ukraine: Stilt performers at the Metalist Stadium before the Euro 2012 match between the Netherlands and Denmark Photograph: Filippo Monteforte/AFP/Getty Images

Sana'a, Yemen: Yemeni demonstrators carry mattresses and blankets following the part-dismantling of the main camp Photograph: Yahya Arhab/EPA

Madrid, Spain: Spaniards dress up as bishops for a stag party Photograph: Daniel Ochoa de Olza/AP

Del Mar, California, US: Todd Murnan and his dog Big Air Bella perform at the Purina Pro Plan Incredible Dog Challenge Photograph: Gus Ruelas/Reuters

Beijing, China: Visitors look at tapestries and artworks on display at the Luxury China 2012 exhibition Photograph: How Hwee Young/EPA

Remoulins, France: People watch French Ludolux, Groupe F's firework display over the Pont du Gard Photograph: Sylvain Thomas/AFP/Getty Images

Nairobi, Kenya: Search and rescue teams work through the rubble of a collapsed building in the Mlolongo area Photograph: Thomas Mukoya/Reuters