Picture desk live: the day's best news images

A Congolese army tank retreats through the village of Rugari, around 37km from Goma, following an alleged ambush by M23 rebels in the Democratic Republic of the Congo's restive North Kivu province Photograph: Phil Moore/AFP/Getty Images

Circus entertainers pose for photographers in the Olympic Village Photograph: Mark Makela/Zuma Press/Corbis

Katy B performs at the Olympic Torch Relay concert in Hyde Park Photograph: Matt Crossick/PA

TV personalities Joanna Lumley and Jennifer Saunders carry the Olympic torch down King's Road on the penultimate leg of the journey before being taken to the Olympic Park tomorrow for the opening ceremony. Don't try to light your fag with it though, sweetie dahling! Photograph: Dan Kitwood/Getty Images

British Olympic diver Tom Daley shakes water out of his hair as he climbs out of the pool during a training session at the Aquatics Centre Photograph: Al Bello/Getty Images

The Duchess of Cambridge visits Bacon's College in Greenwich for the launch of a new sports project that aims to train the next generation of sports coaches Photograph: Lewis Whyld/PA

A truly spectacular image of the Milky Way captured just before sunrise on the Stanserhorn in Switzerland Photograph: Alessandro Della Bella/EPA

Displaced villagers wait at a relief camp at Bijni village in the Chirang district of Assam in India. A major deployment of troops in the area appears to have calmed an outburst of ethnic violence that left at least 45 people dead Photograph: Biju Boro/AFP/Getty Images

Children peep through the window of a school house converted in to a relief camp for those affected by the ethnic violence in Assam Photograph: EPA

North Korean war veterans arrive in Pyongyang to attend the celebrations of The War Victory Day that commemorates the 1950-53 Korean War Photograph: KCNA/Reuters

Some Londoners were kept awake up last night as fireworks exploded over the Olympic Stadium during a rehearsal for the opening ceremony of the 2012 Olympics. The real thing is tomorrow night Photograph: Martin Bureau/AFP/Getty Images

What can you do? A man takes a nap on an inflatable sofa floating on a flooded street near the Yangtze River in Chongqing municipality, China Photograph: Shi Tou/Reuters

A clown called Titi (are we allowed to say that?) applies make-up during the 4th Latin America clown congress in Guatemala City that's running all week Photograph: Jorge Dan Lopez/Reuters

In a huge break with the traditional North Korean photo-opportunities a smiling North Korean leader, Kim Jong-un, prepares to take a ride with other high-level officials during the opening ceremony of the Rungna People's Pleasure Ground on Rungna Islet along the Taedong River in Pyongyang Photograph: KCNA/Reuters

Well he might get elected: the Labour leader, Ed Miliband, greets US presidential candidate Mitt Romney at the House of Commons in London today Photograph: Stefan Rousseau/PA