Kerala Chief Minister Pinarayi Vijayan on Wednesday admitted in the state assembly that there have been repeated incidents of bomb blasts in some areas of the northern district of Kannur and said the police will conduct more vigorous investigations there. The submission by Vijayan came while rejecting the Congress-led UDF opposition's demand to adjourn the House proceedings and discuss the issue of repeated instances of bomb blasts in Kannur district. Claiming that a peaceful environment prevailed in Kannur, the CM said that the police were taking strict measures, including inspections, to prevent the manufacture of explosives. "The government is viewing the recent incident and similar instances very seriously and police have been directed to take stringent actions. Do not try to give it a political colour," he said. He said that a case of unnatural death has been registered under the Explosive Substances Act in connection with the demise of an 86-year-old man in a bomb blast at ..