Mumbai: Security agencies went on high alert following a threat to blow up Mumbai's Chhatrapati Shivaji International Airport, official sources said on Saturday. The threat was made by an unidentified caller who spoke to a woman official in Hindi around 6 p.m. The caller reportedly said the Mumbai airport would be blown up before February 2. The Bomb Threat Assessment Committee met and discussed the situation, and later concluded that the threat was "non-specific". However, security has been beefed up following the incident which came barely 10 hours after after a similar bomb threat to a Bhubaneshwar-Mumbai GoAir flight earlier on Saturday morning.