<span style="color: #222222;">Sri Lankan navy has launched extra vigil on its northern seas in wake of media reports that some terrorist elements may have left the country to land on Indian shores. <br />'' <br />'' Navy spokesman Isuru Desapriya told our correspondent that the vigil is being carried out based on media reports but there has not been any such from security agencies. <br />'' <br />'' He said special security plan is being implemented since Easter Sunday attacks and several naval units have been deployed to prevent any illegal movement of personnel and goods.  <br />'' <br />'' Earlier, several media outlets reported that a group of 15 suspected Islamic State terrorists were fleeing Sri Lanka towards the Kerala Coast. Coastal security has been beefed up across the Kerala coast in wake of reports.  <br />'' <br />'' The spokesman said they are in touch with Indian authorities and the naval presence in the North has been doubled and placed on maximum vigil. <br />''<br />''Indian intelligence had provided inputs about the Easter attacks which killed 258 people including 45 foreigners. A suspect was arrested in Kerala after the attacks and was believed to be following the literature propagated by Zahran Hashim, the main perpetrator of Easter attacks. </span><br />