Five people were arrested on charges of possessing illegal firearms in the Thirukkovil area of Amparai district on Saturday morning.
Thirukkovil police raided houses located in Kanchirankuda, Thambiluvil, Vinayagapuram and Thirukkovil.
Police claimed to have recovered five locally-made firearms, for which five people were arrested. Police said the arrested would be produced in court.
Earlier this week, two Tamil men, including a former LTTE cadre, were arrested in Thirukkovil on allegations of illegally manufacturing firearms.