Security at three major international airports in Mumbai, Hyderabad and Chennai has been stepped up after agencies were informed about a possible hijack attempt of an aircraft from these facilities.

AirplaneOfficials said, an high alert has been issued to the three facilities after Mumbai Police received an e-mail last night from a woman living there. They said, the e-mail mentions that the woman overheard six boys talking about a possible aircraft hijack attempt at these facilities.

CISF Director General O P Singh confirmed to a news agency that the security apparatus at these airports has been put on an enhanced alert and protocols have been stepped up.

However, a senior officer who is part of airports security team said, there is no reason to panic and all the operations at these airports will be normal and without any hassle to passengers. The police are probing the contents of the e-mail and trying to get in touch with the sender.