24 hours in pictures

Louisiana, USA: A northern gannet, covered in oil from the massive spill in the Gulf of Mexico, awaits help at a 'mobile wildlife rehabilitation station' operated by Clean Gulf Associates
Photograph: Carlos Barria/Reuters

Athens, Greece: Riot policemen try to extinguish flames on a colleague set alight by a protester's petrol bomb
Photograph: Evi Zoupanou/AP

Kabul, Afghanistan: An Afghan boy removes bricks from one wall of a building damaged in the civil war
Photograph: Dar Yasin/AP

Guatemala City: Ruth Daniela, five, plays next to drying cow intestines at El Rastro market ahead of Labour Day festivities
Photograph: Rodrigo Abd/AP

Mumbai, India: Children from a shanty wait their turns to receive free food outside a mobile classroom
Photograph: Rajanish Kakade/AP

Kiev, Ukraine: Members of several ultra-left parties attend a demonstration to mark International Workers' Day
Photograph: Maksim Marusenko/EPA

Kiev, Ukraine: Service personnel in historical uniform practice for a military parade to celebrate the 65th anniversary of the victory over Nazi troops
Photograph: Gleb Garanich/Reuters

Shanghai, China: Fireworks light up the sky during the opening ceremony of the World Expo
Photograph: Peter Parks/AFP

Shanghai, China: In the Expo's French pavilion, visitors photograph paintings from the Musee D'Orsay through a secured glass screen
Photograph: Philippe Lopez/AFP

Jammu, India: Brick-factory labourers work as their children sleep
Photograph: Mukesh Gupta/Reuters

Macau, China: Protesters run from a water canon spray during a May Day rally against inflation and illegal labour
Photograph: Kin Cheung/AP

Bangkok, Thailand: Red Shirt anti-government protesters rebuild a barricade after it was moved to provide access to a hospital in the financial central district of Silom
Photograph: Pedro Ugarte/AFP