sentences:  Free Media Movement an International Federation of Journalists associate reported that newspapers like Sudor Oli and Thinakkural have received threats from government aligned para-military groups demanding that their distribution be stopped and there were attempts to unofficially censure Tamil media organizations  His disappearance is part of a series of disappearances of Tamils in Jaffna which is under Army control.Ramachandran had written an article about illegal sand trafficking which included the license numbers of the vehicles involved and the businessman's connections with certain officers.Ramachandran was also threatened by the Tamil Tigers in the past for having good relations with members of the security forces.