24 hours in pictures : May 3 2007

Eastern Chad: A man rides through a sandstorm from Darfur in Sudan into eastern Chad. Over 200,000 people have fled from the Khartoum-backed Janjaweed militia to their unstable neighbour. Photograph: STEPHEN MORRISON/EPA

Paris, France: The Socialist presidential candidate Segolene Royal takes part in a programme on France-Inter radio. Photograph: MARTIN BUREAU/AFP

Seoul, South Korea: US tightrope walker Pedro Carril participates in the first world high wire championships over the Han Gang river. Photograph: Chung Sung-Jun/Getty

Beijing, China: A day out at the zoo. Photograph: Elizabeth Dalziel/AP

Washington, USA: President Bush talks about the war in Iraq in an address to the Associated General Contractors of America. Photograph: Charles Dharapak/AP

Eckernfoerde, Germany: The interior of submarine U34. The new 212A-class vessel comes into operation on the 100th anniversary of the launch of the first German submarine. Photograph: Heribert Proepper/AP

Baghdad, Iraq: Locals demand the withdrawal of US troops from a camp originally inhabited by displaced Iraqi families. Photograph: SHEHAB AHMED/EPA

Sharm El-Sheik, Egypt: Delegates attend the international conference on the future of Iraq. Photograph: Emilio Morenatti/AP

Kabul, Afghanistan: Afghan boys train at a kick-boxing gym. Photograph: Rafiq Maqbool/AP

Hyderabad, India: Buddhist monks and devotees offer prayers beside a statue of Buddha during the Purnima festival. Photograph: NOAH SEELAM/AFP

Bayeux, France: A memorial to journalists killed while doing their job, designed by the French architect and landscape artist Samuel Craquelin. Photograph: MYCHELE DANIAU/AFP

Chicago, USA: A four-month-old polar bear cub snuggles up to its mother at Brookfield zoo. Photograph: Scott Olson/Getty

Ijmuiden, The Netherlands: Caterpillars strip hawthorn trees of their leaves and shoots. Photograph: ANP/AFP

Acapulco, Mexico: A victims of violence between Mexican drug gangs, who are waging a campaign using corpses as message boards. Photograph: STR/AP

Muranska, Slovenia: A young stud at the state forestry ranch in the Muranska national park. Photograph: JOE KLAMAR/AFP

San Francisco, USA: Christine Ponelle gets a kiss from her dog Cholla at Bernal Heights park. The Humane Society of the United States named San Francisco as the most humane city for animals for its many parks that allow dogs to roam off their leads, vegetarian restaurants and pet-friendly hotels. Photograph: Justin Sullivan/Getty