Patna: A bomb hoax threat was reported on Ahmedabad-Patna IndiGo flight (6E 921) minutes before its landing at the Patna airport on Wednesday, triggering panic among the passengers and authorities.The threat message was received by the IndiGo station manager via WhatsApp just a few minutes before the flight’s scheduled landing at the Patna airport. The flight landed safely and was taken to an isolation bay for a thorough inspection. Bomb disposal and dog squad teams were called to search the aircraft. After a comprehensive search, no explosives or suspicious objects were found.The IndiGo flight 6E 921 departed from Ahmedabad at 10.55am and arrived at Patna airport around 1pm. Before the arrival of the aircraft, the airline’s station manager, Shalini, received a WhatsApp message containing a photograph of a tissue paper with the word ‘bomb’ written on it.An Airports Authority of India (AAI) representative said, “The IndiGo official immediately informed the Air Traffic Control (ATC) about it, which in turn alerted the CISF, which provides security cover to the airport.”Following safety protocols, all passengers were evacuated from the aircraft approximately 40 minutes after landing. The CISF personnel, along with sniffer dogs and explosive detection equipment, conducted an extensive search of the aircraft but found nothing suspicious. The evacuated passengers experienced an additional hour-long delay in collecting their luggage.Airport authorities are probing the origin of the hoax message.