Gansu Locked Down After Riots 2008-11-21 Local officials and residents say a curfew has been imposed on Longnan city following two days of violence between police and protesters. RFA Volunteer A police officer kicks a protestor restrained by two fellow officers in Longnan, Gansu province. HONG KONG—Authorities in the northwestern Chinese province of Gansu have imposed a curfew on some districts of Longnan city following two days of violence between security forces and local residents resisting eviction. "The whole area is under curfew," a local official who declined to be identified said. "Any groups of more than three people will...