Niclas Hammerstroem of Sweden won the second prize of the Spot News Stories of the World Press Photo of the Year 2011 for a photo taken on July 22, 2011 for Afftonbladet on Utoeya Island after rightwing Norwegian extremist Anders Behring Breivik went on a rampage, killing 77 people.

Yuri Kozyrev of Russia won the first prize of the Spot News Singles category of the World Press Photo of the Year 2011 for a photo taken on March 11, 2011 for 'Time' of Libyan rebels in Ras Lanuf.

Adam Pretty of Australia won the second prize of the Sports Stories category of the 2012 World Press Photo contest for a picture taken for Getty Images showing divers practicing during the 14th FINA World Championships at the Oriental Sports Center in Shanghai.

Ton Koene of The Netherlands won the second prize Portraits Stories category of the 2012 World Press Photo Contest for his picture showing a recruit at a police training centre, Kunduz, Afghanistan.

Laerke Posselt of Denmark won the first Prize Portraits Singles category of the 2012 World Press Photo Contest for his picture showing Iranian-born Danish actress Mellica Mehraban, Copenhagen.

Yasuyoshi Chiba of Agence France-Presse, Japan, won the first prize People in the News Stories category of the 2012 World Press Photo Contest for the picture showing the aftermath of the tsunami in Japan. Chieko Matsukawa shows her daughter's graduation certificate as she finds it in the debris in Higashimatsushima city, Miyagi prefecture, Japan.

Paolo Pellegrin, Italy, of Magnum Photos won the second prize General News Stories category of the 2012 World Press Photo Contest for a picture taken for Zeit Magazin showing the tsunami aftermath, in Japan.

Jenny E. Ross, US, won the first prize Nature Singles category of the 2012 World Press Photo contest for a picture showing a male polar bear climbing precariously on the face of a cliff above the ocean at Ostrova Oranskie in northern Novaya Zemlya, attempting to feed on seabird eggs.

In this photo provided on Friday Feb. 10, 2012 by World Press Photo, the 1st prize Daily Life Singles category of the 2012 World Press Photo contest by Damir Sagolj, Bosnia and Herzegovina, Reuters, shows a picture of North Korea's founder, Kim Il-sung, on a building in the capital Pyongyang, North Korea.

Alex Majoli, Italy, of Magnum Photos won the first prize General News Singles category of the 2012 World Press Photo contest for a Newsweek picture showing protesters cry, chant and scream in Cairo's Tahrir Square, after listening to the speech in which Egyptian President Hosni Mubarak said he would not give up power.

This picture by Stephanie Sinclair, USA, VII Photo Agency for National Geographic magazine showing Tahani (in pink), who married her husband Majed when she was 6 and he was 25, posing for this portrait with former classmate Ghada, also a child bride, outside their mountain home in Hajjah, Yemen, won the 1st prize Contemporary Issues Stories category of the 2012 World Press Photo contest. Nearly half of all women in Yemen were married as ...

The photo by Rob Hornstra, The Netherlands, showing the Sochi Project: Sochi Singers Marika Bajur sings 'Kuriu' in the restaurant Eurasia won the 1st prize Arts and Entertainment Stories category of the 2012 World Press Photo contest.

The picture by Vincent Boisot, France, Riva Press for Le Figaro Magazine, shows a model posing in front of tailor stalls in the centre of Dakar, Senegal, which won the 2nd prize Arts and Entertainment Singles category of the 2012 World Press Photo contest. She wears the creation of a designer, Yolande Mancini, participating in the 9th edition of Dakar Fashion Week.

The photo by Brent Stirton, South Africa, Reportage by Getty Images for Kiev Independent, shows Maria, a drug addict and sex worker, in between clients in a room she rents in Kryvyi Rig, Ukraine which won the 1st prize Contemporary Issues Singles category of the 2012 World Press Photo contest. Maria injects drugs on a daily basis and sees many men every week but claims she remains HIV negative. She says she needs the money to support herself, ...

Brent Stirton, South Africa, of Getty Images won the first prize Nature Stories category of the 2012 World Press Photo contest for a National Geographic image showing ‘Rhino Wars’, Tugela Private Game Reserve, South Africa. A female rhino, left, in Natal, South Africa, that four months earlier survived a brutal dehorning by poachers who used a chainsaw to remove her horns and a large section of bone in this area of her skull.

Ray McManus of Ireland won the second prize Sports Singles category of the 2012 World Press Photo contest for his photo showing action from a rugby match between Old Belvedere and Blackrock taken for Sportsfile.

In this photo provided on Friday Feb. 10, 2012 by World Press Photo, the 1st prize Daily Life Stories of the 2012 World Press Photo contest by Alejandro Kirchuk, Argentina "Never Let You Go". Marcos leads Monica from their room to the living room in Buenos Aires. Monica was diagnosed with Alzheimer's disease.

Tomasz Lazar, Poland, won the second prize People in the News Singles category of the 2012 World Press Photo contest for the picture showing protesters in Harlem, New York City, during a demonstration against police tactics and income inequality.

In this photo provided on Friday Feb. 10, 2012 by World Press Photo, the 2012 World Press Photo of the year by Samuel Aranda, Spain, for The New York Times, shows a woman holding a wounded relative during protests against president Saleh in Sanaa.