Security has been stepped up at airports across the country after intelligence inputs warned that Pakistan-based terrorists could hijack an aircraft to Bangladesh.A high alert has been sounded and emergency anti-hijacking measures and multi-layered security arrangements put in place at all the airports as the level of threat has been raised, official sources said here.Intelligence inputs suggested that terrorists may attempt to hijack an aircraft to Bangladesh to seek the release of Mohammed Afzal Guru, sentenced to death in the 2001 Parliament attack case.They said the plane could be taken to Bangladesh to avoid international focus on Pakistan.CISF, which is guarding majority of the airports, stepped up vigil and deployed additional personnel after the Bureau of Civil Aviation Security sounded the paramilitary force about the danger.The alert comes exactly a month after several airports in southern cities received a threat from al-Qaeda that it would attack the Chennai airport with sophisticated technology as it had done in Thailand. An anonymous letter had also warned of similar attacks in Tiruchirapalli, Madurai, Coimbatore, Thiruvananthapuram and Kochi airports in Tamil Nadu and Kerala, respectively, after which all the airports were put on alert.
