24 hours in pictures

Maoz Ester, West Bank: Jewish settlers dance and sing as they dedicate a Torah scroll Photograph: Uriel Sinai/Getty Images

Istanbul Park, Turkey: Kimi Räikkönen of Finland drives his Ferrari during a practice for the Turkish formula one Photograph: Paul Gilham/Getty Images

Gabura, Bangladesh: Bangladeshi workers unload relief materials from a boat as villagers queue following Cyclone Aila, which left tens of thousands stranded Photograph: Munir Uz Zaman/AFP/Getty Images

Cozumel Island, Mexico: A Greenpeace activist in a parachute displays a banner which reads, "Save the climate", before a meeting to commemorate World Environment Day Photograph: Luis Acosta/AFP/Getty Images

Germany: Barbed wire seen in the grounds of Buchenwald concentration camp Photograph: Michael Kappeler/AFP/Getty Images

Almaty, Kazakhstan: Children cool off in fountains during hot weather Photograph: Owen Humphreys/PA

Dadaab, Kenya: A Somali refugee waits in line for handouts from the World Food Programme to be distributed at Hagadera camp Photograph: Finbarr O'reilly/REUTERS

Guatemala City, Guatamala: Passengers travel on a bus through the city Photograph: Rodrigo Abd/AP

Santiago, Chile: A teacher is hit by a police water cannon during a protest. Teachers are on a strike to demand that the government pay them a bonus that dates from 2007 Photograph: Roberto Candia/AP

St Albans, England: Botanist David Bellamy with a tree nymph butterfly at the Future Gardens visitor attraction Photograph: Geoff Caddick/PA

Mardan district, Pakistan: Journalists take cover as a helicopter carrying US special envoy Richard Holbrooke lands in the United Nations High Commission for Refugees Sheikh Shahzad camp Photograph: STR/Pakistan/Reuters

Berlin, Germany: Michael Tangermann operates a pinball machine via electrodes attached to his head during a press conference at the Technical University of Berlin Photograph: Theo Heimann/AFP/Getty Images

Swabi, Pakistan: Pakistani refugees wait in line for many hours to get bread at the Yar Hussain camp Photograph: Paula Bronstein/Getty Images

Toronto, Canada: Pedestrians walk through shadows near City Hall Photograph: Darren Calabrese/AP

Riyadh, Saudi Arabia: A live TV broadcast showing US president Barack Obama delivering his speech at Cairo University is reflected in the sunglasses of a man at a coffee shop Photograph: Hassan Ammar/AP

Hong Kong: Thousands of people take part in a candlelit vigil to mark the 20th anniversary of the Tiananmen Square massacre Photograph: Alex Hofford/EPA

Elmont, New York, US: Kentucky derby winner Mine That Bird is given a bath by Charlie Figueroa after a training session for the Belmont Stakes Photograph: Al Bello/Getty Images

Bangladesh: A tannery on the banks of the Buriganga river Photograph: Munir Uz Zaman/AFP/Getty Images

River Loire, France: Japanese artist Tatzu Nishi's installation La villa cheminee (The chimney villa) on the eve of the Loire estuary project. The event presents contemporary art exhibitions along 40 miles from Nantes to Saint-Nazaire Photograph: Frank Perry/AFP/Getty Images

California, US: More than 4,000 students gather at Dockweiler state beach to create a message of protecting the ocean from litter and urban runoff Photograph: Michael Owen Baker/AP