Picture desk live: the day's best news images

A fantastic sports photograph here of Serena Williams reacting with joy after defeating Victoria Azarenka of Belarus during their semi-final match at Wimbledon Photograph: Anja Niedringhaus/AP

A boy enjoys the hot weather as he plays in water fountains on a public square in Vienna, Austria. Since last week Austria has been experiencing a heatwave with temperatures up to 37C Photograph: Georg Hochmuth/EPA

Fans wave a French flag as the Tour de France pack rides past in the fifth stage in Rouen. Andre Greipel won the stage Photograph: Joel Saget/AFP/Getty Images

The royal family, all dressed up in their glad rags, attend the Thistle Service at St Giles' Cathedral, Edinburgh, for the installation of Prince William as a Knight of the Thistle Photograph: Andrew Milligan/PA

A polar bear swims underwater to grab a fish at the opening of the new Arctic Ocean attraction at Hagenbeck Zoo, Hamburg Photograph: Action Press/Rex Features

Megabus coach passengers sit on the M6 toll road. Armed police swooped on their bus after a passenger was seen pouring a liquid into a box, which then started smoking. Passengers were made to disembark one by one and sit on the side of the motorway. It was later announced that the incident was caused by an electronic cigarette
Photograph: Getty Images

Andy Murray is surrounded by security staff as well as plenty of expectation as he leaves practice ahead of tomorrow's semi-final match against Jo-Wilfried Tsonga at Wimbledon Photograph: Mike Egerton/PA

The name's Bond, James Bond. A woman takes a photograph of a Sean Connery waxwork at the Fifty Years of Bond Style exhibition at the Barbican, London Photograph: Matthew Lloyd/Getty Images

Time's running out for Greece. Poul Thomsen, the International Monetary Fund mission chief in Greece (right), and Klaus Masuch of the European Central Bank check their watches as they leave a meeting with the Greek prime minister, Antonis Samaras. Debt inspectors from the ECB, IMF and the European commission, known as the troika, were meeting the new government, whose coalition partners want some of the strict terms of its bailout eased Photograph: Petros Giannakouris/AP

In Ukraine, the protesters are sending in the big guns now, in the form of opposition supporters dressed in traditional Cossack clothes, to confront riot police during protests about the new Russian language bill passed by the parliament in Kiev Photograph: Gleb Garanich/Reuters

Women wait in line for hours to receive medical treatment at a clinic at the Yida refugee camp in South Sudan. The number of people arriving at the camp increases every day, with the current population exceeding 64,000, as refugees continue to flee South Kordofan in Sudan Photograph: Paula Bronstein/Getty Images

The Olympic flame goes off-piste as it gets abseiled down the side of Norwich castle on day 48 of the torch relay Photograph: LOCOG via Getty Images

And now here it is on a boat for a trip down the river Wensum Photograph: Yui Mok/LOCOG/PA

Another slightly cringeworthy photocall from Boris Johnson, as he joins Arlene Phillips and rush-hour commuters on the platform of St Pancras International station to launch Big Dance 2012
Photograph: Ben Pruchnie/Getty Images

A protester runs from teargas during clashes after a march in central Lima, Peru, against violence in Cajamarca. Four people were killed and several were wounded in Cajamarca after two days of protests against the Conga mining project Photograph: Ernesto Benavides/AFP/Getty Images

Two girls laugh in the heavy rain as a soaked rickshaw driver transports vegetables during the monsoon in Lucknow, India. The monsoon rains, which usually hit India from June to September, are crucial for farmers whose crops feed hundreds of millions of people Photograph: Rajesh Kumar Singh/AP

Jeff Sheehan and his daughter Sydney survey their Mountain Shadows neighbourhood, which was devastated by the Waldo Canyon fire in Colorado Springs. Residents have begun returning to charred areas after the most destructive wildfire in Colorado's history forced tens of thousands of people from their homes Photograph: Adrees Latif/Reuters

Schoolchildren from an orphanage await the arrival of Aung San Suu Kyi in Kawhmu township, Burma, where she won a parliamentary seat in a byelection Photograph: Khin Maung Win/AP

Solomon, three, and Tali, four, enjoy the views across London from the Emirates Air Line cable car that crosses the river Thames
Photograph: David Levene for the Guardian