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Winner: 'One day in history' by Andrea Gjestvang, Norway. Pictured is Iselin Rose Borch, 15, and her dog who sleeps with her at night to help ward off the nightmares from that tragic day (Andrea Gjestvang/ Moment/ Sony World Photography Awards)

Sony World Photography Awards: Professional winners

Winners of the Landscape, Sport, Current Affairs categories and more are featured in this gallery, including the L’iris D’or winner - otherwise known as the Sony World Photography Awards Photographer of the Year.

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