24 hours in pictures

London, UK: The annual ritual of swan upping on the river Thames at Bray Lock Photograph: Graeme Robertson

Baidoa, Somalia: A woman bathes her child at a camp for internally displaced people Photograph: Mohamed Dahir/AFP/Getty

Salina, US: A bee lands on an echinacea flower Photograph: AP

Mexico City, Mexico: A boy clown performs during the second day of the First Festival of the Arts of the Clown Photograph: Alfredo Estrella/AFP/Getty

Tokyo, Japan: A young girl walks in the midst of lanterns lined up on a beach Photograph: Dai Kurokawa/EPA

Rome, Italy: Josephine Moller and Nora Subschinski of Germany compete in the 10m womens synchronised diving final Photograph: Clive Rose/Getty Images

Nanjing, China: People enjoy themselves in a crowded swimming pool Photograph: ChinaFotoPress/Getty Images

Beijing, China: Visitors reflected in mirrors forming a sphere displayed at the China Pavilion for the Shanghai World Expo 2010 Photograph: Andy Wong/AP

Morelia, Mexico: Soldiers fall in at a barracks during the Michoacan anti-narcotics operation Photograph: Luis Acosta/AFP/Getty

Silivri, Turkey: Soldiers stand guard at the start of the trial of two retired four-star generals and 54 other defendants on charges of leading an alleged plot to topple Turkey's Islamist-rooted government Photograph: Mustafa Ozer/AFP/Getty

Sanaa, Yemen: Women from the Akhdam community at a demonstration demanding better rights and living conditions Photograph: Khaled Abdullah/Reuters

Houston, US: A group of boys play football under a covered basketball court at Eastwood Park Photograph: Nick de la Torre/AP

Ostia, Italy: Swimmers get ready for the start of the women's 5km open water swimming competition Photograph: Wolfgang Rattay/Reuters

Moscow, Russia: A boy plays under a fountain Photograph: Alexander Natruskin/Reuters

Tatsugo, Japan: Visitors watch the milky way at a campsite Photograph: Koji Sasahara/AP