(CNN) -- Despite being allowed to tell her husband he won the 2010 Nobel Peace Prize, the wife of Liu Xiaobo was detained in her apartment in Beijing, China, according to a human rights group and her attorney. Liu Xia has not been charged with a crime, but "appears to be under a de facto house arrest," said Beth Schwanke, legislative counsel for the U.S.-based group Freedom Now. She was taken to see Liu Xiaobo in a prison several hundred miles northeast of Beijing, Schwanke said, and tell him of the honor. Upon hearing he had received the peace prize, Schwanke said, Liu Xiaobo began to cry, and said, "This is for the martyrs of Tiananmen Square."
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NEW: Liu Xiaobo: "This is for the martyrs of Tiananmen Square"
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Liu Xia is not allowed to use her phone or leave her apartment, human rights group says
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She was able to tell her jailed husband he had won the Nobel Peace Prize
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China blacked out CNN and the BBC as the prize was announced
@placeholder won the prize Friday, but news of the win has been blacked out in China, with no mention of it on Chinese media.