Ahmedabad, Sept 22: The 'blasts' being reported from the city and other parts of the state were due to the 'sonic boom' caused by low flying of fighter plane, Indian Air Force sources said here today. The 'sonic boom' caused by a low flying MiG-21 fighter Jet had caused the 'blast' like noises heard in several parts of Gujarat this morning, IAF spokesperson T K Singha told a news agency. It was a 'planned profile' by the IAF and there was no (no) reason for panic, he added. Bureau Report