24 hours in pictures

Oviedo, Spain: striking coalminers behind their shields as they defend their position from riot police near the El Soton mine Photograph: Emilio Morenatti/AP

Giza, Egypt: handlers unload camels into a holding yard for trading at a market Photograph: Daniel Berehulak/Getty Images

Islamabad, Pakistan: a street barber gives a haircut to a customer Photograph: Muhammed Muheisen/AP

Athens, Greece: passengers travel on a train Photograph: Oli Scarff/Getty Images

Sittwe, Burma: Rohingya children in a slum Photograph: Damir Sagolj/Reuters

Cairo, Egypt: military police form a barricade during a protest outside the supreme constitutional court Photograph: Daniel Berehulak/Getty Images

Poznan, Poland: a young boy watches the Euro 2012 match between Italy and Croatia at the Fan Zone Photograph: Aidan Crawley/EPA

Altamira, Brazil: students practise music near the site where the Belo Monte dam complex is under construction in the Amazon basin Photograph: Mario Tama/Getty Images

Nairobi, Kenya: an assistant cook prepares food in a dimly lit kitchen at a hotel in Kibera slum Photograph: Noor Khamis/Reuters

Virginia, US: honour guard soldiers participate in a ceremony at the Tomb of the Unknowns at Arlington national cemetery Photograph: Chip Somodevilla/Getty Images

London, UK: customised phoneboxes – part of the BT ArtBoxes project for the ChildLine charity Photograph: Stuart Wilson/Getty Images

Washington, US: Hillary Clinton's image is reflected on the window of a translator booth at the state department Photograph: Alex Wong/Getty Images

Kabul, Afghanistan: a polio victim, Samiulah, 15, tests his new prosthetic at the ICRC physical rehabilitation centre Photograph: Anja Niedringhaus/AP

New York, US: people look out of a window at the street where Barack Obama will hold a fundraiser with Sarah Jessica Parker Photograph: Keith Bedford/Reuters

Rio de Janeiro, Brazil: the Amazonian Indian chief Raoni speaks to journalists at the Rio+20 environmental summit Photograph: Christophe Simon/AFP/Getty Images

Mexico City, Mexico: an Oxfam activist wearing a mask depicting Obama Photograph: Alexandre Meneghini/AP