Security agencies are suspecting that Pakistan-based terror outfits like Laskhar-e-Taiba or Jaish-e-Mohammad may be behind the deadly Hyderabad blasts that claimed 40 lives."Investigations are at a very, very preliminary stage, and, based on some information so far, some possibilities have been identified and expressed," home secretary Madhukar Gupta said here."The elements or organisations are clearly outside the country, and they resort to fuelling such kinds of activities." he added.Asked if any group has been identified, he said while the probe was in its initial stages, security agencies and the state police were suspecting the role of Laskhar-e-Taiba or Jaish-e-Mohammad. "But what is more important is to nab those who planned it and those who executed it," he said.Gupta's comments come a day after Home Minister Shivraj Patil refused to specify whether terror groups based in Pakistan and Bangladesh were behind the attacks on Saturday night.