<span style="color: #222222;">In Tamilnadu, police has released all three suspects after intensive questioning in the case related to terrorists infiltration in the state from Sri Lanka. <br />''<br />''Police said, three people had been held for intensive questioning for alomost four hours in Karunya Nagar, a suburb of Coimbatore. They were questioned for their alleged links with a person who was arrested at Kochin's Nedumbassery International airport in Kerala yesterday.</span><br />'' <span style="color: #222222;"><br />'' A group of six terrorists from Sri Lanka was suspected to have surreptitiously entered Tamil Nadu. </span><br />'' <span style="color: #222222;"><br />''<br />''Security has been tightened through out Tamilnadu. The Navy and Coast Gaurd have also been put on in the Dhanushkodi and Rameswaram coastal areas of Tamilnadu. </span><br />