The marine police have intensified vigil in the coastal areas of the district following the arrest of Sakir Hussain, a Sri Lankan national, suspected to be an agent of an Inter Services Intelligence (ISI) operative in Chennai, on Tuesday night.

The Inspector of Police of Coastal Security attached to the Marine Police Station in Kanyakumari, F. Sahaya Jose, told The Hindu on Wednesday that there were four fibre-glass intercept boats in the district and more than 26 police personnel were being engaged in coastal patrolling to prevent the intrusion of any terrorists through sea.

The marine police used to undertake sea patrol for four to five hours per day in sea apart from conducting coastal patrolling from Arockiyapuram in Kanyakumari to Neerodi (Tamil Nadu-Kerala border) covering 47 coastal hamlets.

Moreover, fishermen, who used to venture into sea, have been asked to inform the marine police about any suspicious movement of boats or persons in sea.