Coimbatore: In the wake of intelligence inputs on the issue of infiltration of suspected LeT terrorists into Tamil Nadu, Coimbatore continued to be under tight security for the third day on Sunday (August 25) too, with places of worship especially churches being brought under increased vigil.

According to Coimbatore Police, three people were taken into custody on Saturday (August 24) on suspicion of being in touch with a man detained in Kerala for alleged links with suspects who were released after questioning.

The trio was let off on the condition that they should appear before the police whenever required, they said.

Tight security measures including intensified vehicle and baggage checks continued across the city, where a high alert has been sounded since Friday (August 23) following information that terrorists have entered the state and were heading here.

The entire state is on alert with sensitive installations in places of the large congregation coming under police vigil.

Since the terrorists entered the country by sea from Sri Lanka, police suspected they might carry out attacks on places of worship, particularly churches, where a large number of people gather on Sunday, as was done in the island nation during the Easter holiday.

Security and anti-sabotage checks were carried out in significant places on Saturday night by commando force personnel, with the assistance of sniffer dogs, police said.

Three-Tier security was in place at the international airport, and over 2,000 police personnel were deployed in malls and places with large public concentrations in the city, they said.