24 hours in pictures

Ahvaz, Iran: A couple stand on the shore of the Arvand river during a sandstorm Photograph: Mohammad Reza Dehdari/AFP/Getty Images

Natori, Japan: A damaged photo is displayed at a school gymnasium in the hope that its owner will claim it Photograph: Vincent Yu/AP

Katmandu, Nepal: People take part in a peace rally to mark the Nepalese new year Photograph: Binod Joshi/AP

Ajdabiyah, Libya: A 10-year-old boy stands guard at a rebel checkpoint Photograph: Yannis Behrakis/Reuters

Grand Forks, North Dakota, USA: A springer spaniel stands in floodwater from the Red river as volunteer sandbaggers work to shore up a barrier Photograph: Eric Hylden/AP

Athens, Greece: Public sector workers whose contracts were under threat due to spending cuts celebrate outside the supreme court after a ruling in their favour Photograph: Louisa Gouliamaki/AFP/Getty Images

Ratnagiri , India: An 11-year-old boy carries a container full of dust on his shoulder at a laterite mine Photograph: Danish Siddiqui/Reuters

La Paz, Bolivia: An injured policeman is helped by a comrade during clashes with trade unionists Photograph: David Mercado/Reuters

Rio de Janeiro, Brazil: A police helicopter throws flower petals over the Tasso da Silveira school where 12 students were shot dead a week ago Photograph: Vanderlei Almeida/AFP/Getty Images

Caracas, Venezuela: Members of the National Revolutionary Militia take part in a rally marking the ninth anniversary of a failed coup against Hugo Chávez Photograph: Ariana Cubillos/AP

Amritsar, India: Sikhs queue to give offerings at the Golden Temple during the Baisakhi festival, which marks the Sikh new year Photograph: Raminder Pal Singh/EPA

Milan, Italy: Visitors look at a work called Twilight, by Tokujin Yoshioka, at Milan design week Photograph: Stefania D'Alessandro/Getty Images

Jerusalem: An ultra-Orthodox Jewish boy carries donated food for the poor from a distribution centre before Passover Photograph: Menahem Kahana/AFP/Getty Images

Holloko, Hungary: Men throw water at women to demonstrate the traditional Easter celebration called the 'watering of the girls' Photograph: Laszlo Balogh/Reuters