24 hour in pictures

Argentina's president, Cristina Fernandez de Kirchner, greets supporters as she accompanies the hearse of her husband, Nestor Kirchner
Photograph: Martin Acosta/Reuters

Untitled by Mark Rothko on display during a press preview of Sotheby's Contemporary Art Autumn sale in New York Photograph: Emmanuel Dunand/AFP/Getty Images

A western lowland gorilla born in captivity at the San Francisco Zoo Photograph: George Nikitin/AP

A speleologist descends into a cave in Antelias, northeast of Beirut. The cave leads to an underground river which supplies drinking water for part of the Lebanese capital Photograph: Joseph Eid/AFP/Getty Images

A dog sits by an abandoned village covered with volcanic ash from the eruption of Mount Merapi in Indonesia Photograph: Trisnadi/AP

A girl plays in the garden of a home decorated for Halloween in Los Angeles Photograph: Lucy Nicholson/Reuters

Barack Obama at a campaign rally for House member Tom Perriello in Charlottesville, Virginia Photograph: Kevin Lamarque/Reuters

Supporters of Laurent Gbagbo wear body paint during the president's final campaign rally in Abidjan, Ivory Coast Photograph: Rebecca Blackwell/AP

A visitor looks at an installation in an exhibition at the Macro Museum in Rome. The exhibition is part of the city film festival's tribute to Federico Fellini Photograph: Alessia Pierdomenico/Reuters

A man sits in the devastated village of Munte Barubaru on Indonesia's North Pagai island, which was struck by a tsunami Photograph: Mast Irham/EPA

Sicily and mainland Italy are seen from the International Space Station Photograph: Nasa/AP

The head of a 33-metre high statue of Christ to be erected on a hill stands in Swiebodzin, Poland Photograph: Janek Skarzynski/AFP/Getty Images

Birds swarm around a US navy plane as it comes in to land at Fort Smith, Arkansas Photograph: Kaia Larsen/AP

Visitors to the final weekend of the World Expo 2010 in Shanghai leave the UK pavillion Photograph: Philippe Lopez/AFP/Getty Images

A resident crosses a fetid stream in Port-au-Prince. The high death rate in Haiti's cholera epidemic is dropping as people become more aware of the disease Photograph: Eduardo Munoz/Reuters