In a year that has seen misbehaviour on flights, delayed flights and more, hoax calls are not far behind with the most recent incident. The Madhya Pradesh police on Monday has registered a case in connection with an email sent to Raj Bhoj airport in Bhopal and other airports with a threat to blow up flights, a police official said.

On the complaint of Bhopal airport authorities a case under Indian Penal Code section 507 (criminal intimidation) and Aircraft (Security) Rules was registered, Bhopal Deputy Commissioner of Police (Zone 4) Sunder Singh Kanesh told PTI.