Why does the world trust China when it continues to behave this way? BBC:
A US human rights group, Freedom Now, said Liu Xia visited her husband in jail on Sunday.
Freedom Now said Mr Liu wept during his wife's visit and dedicated his award to those killed at Tiananmen Square.
Mrs Liu also posted a message on Twitter with some details of their visit.
Prison officials told Mr Liu that he had won the Nobel prize on the night of 9 October, she said on Twitter.
In the message, she also confirmed that she had been placed under what she described as "house arrest" since the announcement of her husband's award on 8 October.
"My mobile phone has been ruined; I have no way of making or receiving calls," she wrote.
