Chinese police detained activist Liu Linna for "retweeting" news of unrest in Xinjiang province on Weibo, China's equivalent of Twitter. She is currently being held in an administrative detention facility in Henan province. 

Liu's detention follows the detention of a 16 year-old boy who was arrested in Gansu province for retweeting information. The teenager was the first target of China's latest crackdown on online rumors. New laws make it an offense to engage in online "rumor mongering," defined as posting a message that is viewed at least 5,000 or retweeted over 500 times.