Former Czech President Liu protests imprisonment of Czech dissident Liu Xiaobo . Havel put letter of protest in the mailbox of Xinhua news agency in Prague . Liu , a former university lecturer and literary critic , faced a possible 15-year jail sentence , amid growing international outrage over his year-long detention , according to media reports . Liu has been one of Prague 's most prominent dissidents since 1989 the Chinese Embassy protest . Liu was sentenced to 11 years in prison for his role in a separate subversion case .
Former Czech President Liu protests imprisonment of Czech dissident Liu Xiaobo . Havel put letter of protest in the mailbox of Xinhua news agency in Prague . Liu has been one of Prague 's most prominent dissidents since 1989 the Chinese Embassy protest . Liu was sentenced to 11 years in prison for his role in a separate subversion case .