Chinese police have placed a labor activist under criminal detention, formally accusing him of causing a disturbance after they said he distributed information online about a factory strike, his manager and father said…The move is the latest sign that authorities in China have been shaken by recent labor unrest such as a 2-week strike by workers at Yue Yuen Industrial Holdings…manufacturer of footwear for Nike Inc, Adidas AG…Yue Yuen workers went on strike…to protest against what they said were chronically low company contributions to social insurance and housing provident fund accounts…Lin Dong, a 27-year-old activist who works for the Shenzhen Chunfeng Labour Dispute Service Center, was taken into custody a week ago, his manager, Zhang Zhiru, told Reuters. Police were holding him on "suspicion of causing a disturbance", Zhang said…Zhang himself was detained for two days earlier this month by security agents who told him not to make contact with Yue Yuen workers. Police in the township of Gaobu in Dongguan declined to comment…