Japanese Prime Minister Shinzo Abe has refused to deny that he nominated US President Donald Trump for the Nobel Peace Prize for his efforts in helping to ease tensions with North Korea.
The 2018 Nobel Peace Prize has been awarded to Denis Mukwege and Nadia Murad for their efforts to end the use of sexual violence as a weapon of war and armed conflict.
With the Nobel Prizes being awarded this week, find out more about the 117-year-old awards for physics, chemistry, medicine, literature, economics and peace.
Liu Xia, the widow of Chinese Nobel Peace Prize laureate Liu Xiaobo, has arrived in Germany after fleeing Beijing, where she spent almost eight years under house arrest.