High Alert is continued in Mumbai, Chennai and Hyderabad airports over hijack threat. Officers conducted Anti Hijack drills and also deployed NSG forces. Airport officials announced high alert as they received threatening E mails over hijacking planes. Intelligence Sources alerted the officers with the hijack information in International Airports in Mumbai, Chennai and Hyderabad. A lady sent an e mail to police saying she heard 6 members conversing of hijack in a restaurant. She also mentioned that in all the three airports planes are going to be hijacked at a time for which high security force is deployed in the 3 airports.