24 hours in pictures

Managua, Nicaragua: Youths in fancy dress take a break from carnival celebrations Photograph: Esteban Felix/AP

Brega, Libya: The hand of an alleged pro-Gaddafi fighter hangs from a truck as rebels collect bodies from a road Photograph: Alkis Konstantinidis/EPA

Gilan, Iran: Tourists climb stairs to visit the historic village of Masouleh Photograph: Behrouz Mehri/AFP/Getty Images

Phnom Penh, Cambodia: Volunteer Ayumi Matsuura prays for victims of the earthquake and tsunami in Japan Photograph: Samrang Pring/Reuters

Buenos Aires, Argentina: Fans at the Ozzy Scream Tour 2011 get doused in foam Photograph: Natacha Pisarenko/AP

London: A couple dressed as David Cameron and Margaret Thatcher take part in a protest against government cuts Photograph: Peter Macdiarmid/Getty Images

Abidjan, Ivory Coast: People gather in support of President Laurent Gbagbo following last month's disputed election Photograph: Jean-Philippe Ksiazek/AFP/Getty Images

London: A customer tries on a Panama hat at Lock & Co Hatters Photograph: Peter Macdiarmid/Getty Images

Amman, Jordan: A Jordanian anti-government supporter is wounded after clashes Photograph: Marco Longari/AFP/Getty Images

Yamagata, Japan: Shion Endo, 5, plays in a gymnasium that has become an emergency shelter Photograph: Eugene Hoshiko/AP

Sana'a,Yemen: Anti-government protesters shout during a demonstration Photograph: Muhammed Muheisen/AP

Noda, Japan: Hiro Ono, 70, collects salvageable items from her tsunami-devastated village Photograph: Yasuyoshi Chiba/AFP/Getty Images

New York: The Empire State Building is seen lit up before Earth Hour Photograph: Eric Thayer/Reuters

Ajdabiya, Libya: Residents and rebels celebrate the liberation of the city from Gaddafi's forces Photograph: Manu Brabo/EPA

Melbourne, Australia: Formula One driver Sebastian Vettel celebrates with his team after winning the Australian Grand Prix Photograph: Vladimir Rys Photography/Getty Images