<p><br /> Roads around a prison in the Chinese city of Jin Zhou have been blocked by security.<br /> </p><p><br /> The world's latest Nobel Peace Prize winner - imprisoned Chinese democracy campaigner Liu Xiaobo - is being held in the city, probably unaware that he has won the prestigious award.<br /> </p><p><br /> Liu, who was sentenced last year to 11 years in a prison for subversion, won the Nobel Peace Prize, drawing furious condemnation from the government.<br /> </p><p><br /> Chinese state media blacked out the news and Chinese government censors blocked Nobel Prize reports, which highlighted Liu's calls for peaceful political change, from Internet websites.<br /> </p><p><br /> US President Barack Obama called on China on Friday (October 8) to release imprisoned Nobel Peace laureate Liu Xiaobo as soon as possible.<br /> </p><p><br /> Obama, who received the prize last year, lauded Liu, saying he has "sacrificed his freedom for his beliefs."<br /> </p>
