 In response to his work to bring a class action lawsuit against family planning authorities in Linyi , Shandong Province in 2005 , Chen Guangcheng was put under house arrest , threatened , detained , and beaten . Three other Weiquan activists – Li Fangping , Li <unk> , and Xu Zhiyong — visited him to offer support , but were themselves beaten and interrogated . On 24 August 2006 , he was sentenced to four years and three months in prison for " damaging property and gathering crowds to disturb transport order . " Following his release , he remains under house arrest . 
