The incident, near technical area and runway of IGI airport, is being investigated by the central security agencies, Minister of State for Home Haribhai Parathibhai Chaudhary said while replying to a written question.
He said information is being sought from the Ministry of Civil Aviation and the Home Ministry is in the process of preparing Standard Operating Procedures (SOP) for detection, identification and neutralisation of threats arising out of such unmanned aerial vehicles.