24 hours in pictures

Kabul, Afghanistan: Horsemen compete during a Buzkashi game in Panjshir province Photograph: Ahmad Masood/Reuters

Port-au-Prince, Haiti: Students gather on the grounds of the L'ecole Nationale Filles de Marie at the end of the school day Photograph: Mario Tama/Getty Images

Jersey City, US: Icicles are seen as the sun sets over Liberty State Park Photograph: Julio Cortez/AP

Tokyo, Japan: A woman crosses a street Photograph: Yuriko Nakao/Reuters

New Delhi, India: Horses take part in Indian Army rehearsals for the upcoming Republic Day Photograph: Kevin Frayer/AP

Berkentin, Germany: Animal trainer Sascha Prehn and his wife Janine walk a tiger called Sina. Since locals complained, Prehn now only takes Sina for walks in less densely populated area Photograph: Wolfgang Langenstrassen/EPA

Praz-sur-Arly, France: A musher competes in the French Alps, during the fourth stage of the La Grande Odyssée 2011 dog sled race Photograph: Jean-Philippe Ksiazek/AFP/Getty Images

Philadelphia, US: Firefighters tackle a blaze in an apartment building Photograph: Matt Rourke/AP

Juba, Sudan: Southern Sudanese men ride motorcycles at sunset Photograph: Goran Tomasevic/Reuters

Bentiu, Sudan: Members of the Sudan People's Liberation Movement guard a referendum polling station Photograph: Yasuyoshi Chiba/AFP/Getty Images

Asheville, US: A man walks in the downtown area after a heavy snowfall hit this area of the Blue Ridge Mountains in North Carolina Photograph: Scott Halleran/Getty Images

Regueb, Tunisia: A demonstrator covers his face during clashes with security forces Photograph: AFP/Getty Images