Kankesanthurai police yesterday arrested three Tamils from Manipay.
The men were collecting iron materials from land that was recently released to the public after military occupation, in order to sell the goods in Kankesanthurai and surrounding areas.
Police officers on patrol allege the Tamils were in possession of 200 12mm calibre bullet capsules.
The men have been remanded until September 10 by Mallakam court.