April Fool's Day Bomb Threat Delays Plane in Nepal Police in Nepal are investigating whether a bomb threat that delayed a Dubai-bound flight at Nepal's international airport was an April Fool's hoax. Katmandu airport police chief Narayan Prasad Bastakoti says the Nepal Airlines flight was grounded for more than three hours Sunday night as police dogs searched the plane, passengers and their luggage after authorities were warned that there was a bomb on the plane. After no bomb was found, the plane took off and landed safely in Dubai. Bastakoti said Monday that the call notifying Nepalese police of the bomb threat came from Malaysia, and that police were investigating to find out whether it was an April Fool's hoax.