Two more persons allegedly involved in the attempt to traffic Sri Lankan Tamil refugees to Australia have been arrested under the National Security Act.

An independent councillor, Sakthivel, and a functionary of the Periyar Dravidar Kazhagam, Log Ayyapan, were on Wednesday arrested and lodged at the Central Prison at Kalapet here. Both were released on conditional bail a few days ago, a senior police officer told The Hindu.

Earlier, a PMK functionary from Karaikal involved in the human trafficking was arrested under NSA on Tuesday.