The wife of jailed Chinese Nobel Peace Prize winner Liu Xiaobo has used her Twitter account to condemn her house arrest as "illegal."<br /><br />The online messaging service has become Liu Xia's last link to the outside world.<br /><br />She's been confined to her home since Friday when her husband was awarded the prize.<br /><br />Our correspondent Melissa Chan has been trying to reach Liu Xia, but has been blocked by authorities.
