Security increased seven-fold at Chennai airport after bomb threat for Mumbai airport

After the Mumbai airport allegedly received a threat that a bomb was about to be placed there, security has been beefed up at Mumbai, Chennai and Hyderabad airports.

Security forces upped the vigil after an anonymous letter was sent to the Mumbai Police Commissioner. The letter also stated that someone had heard suspects talking about a plot to hijack a plane. Following the alert, security levels at Chennai's Arignar Anna airport have been increased seven-fold.

CISF jawans are patrolling the airport premises with loaded weapons, and Central Intel has also received a tip that terrorist organizations might attempt to hijack an airplane, sources said. Gates in both Kamaraj Domestic Terminal and the international terminal in Chennai have restricted entry for visitors, and airlines have been instructed to thoroughly check passengers' luggage - including hand luggage.