Video: Terror of passengers on bomb scare bus Armed police, the Army and emergency services launched an enormous response and closed part of the M6 Toll road after a passenger on board raised the alarm after seeing a "vapour" coming from a bag. Sniffer dogs were deployed, tents were erected and the 48 passengers on board the Megabus coach were searched one by one before being made to sit on the carriageway in a cordoned off area. Student Vermilion von Kangur from Preston was caught up in the chaos Some people thought there was a bomb on the bus, some people thought the bus was going to explode, some people thought the bus had just broken down...a lot of people started to cry