Panic was seen spreading when they suspected the threat of a hijack attempt was found on an Air India flight from Kolkata to Mumbai on Wednesday morning at the Netaji Subhas Chandra Bose International Airport.

In one of the aircraft’s restrooms, it was discovered a threatening note was written on the mirror that related to a possible hijack, according to sources. The message was noticed as the plane was preparing for takeoff.

Upon the pilot’s knowledge of the threat, he communicated with Air Traffic Control to immediately notify them. The aircraft which was bound to Mumbai was transferred to isolation bay in compliance with standard aircraft security precautions for a detailed check.

A thorough inquiry was initiated by CSFO (Central Industrial Security Force) and dedicated staff working in the Airport Security. The aircraft is being inspected by security teams to ensure there are no suspicious items or objects inside.

The police and other security services have gone into an investigation to see who wrote the threatening message and if there was any “cognitive threat” behind it.

The investigation is ongoing with authorities analysing CCTV footage from around the airport’s facilities and even from inside the plane. The officials are expected to review the number of passengers travelling and other evidence to determine who sent the message.

The incident caused airport security to be stepped up and the authorities kept on searching and investigating the scene.

There was no information about the finding of anything unusual or about the nature of the threat that was credible. More information is awaited from some security agencies who are still investigating the incident.