THIS is the moment a school bus exploded after bursting into flames on a motorway. Emergency services raced to the scene today after the alarm was raised over the vehicle fire around 8. 19am.... 2 The school bus burst into flames on the motorway 2 Flames could be seen coming from the bus before it exploded Video footage shows flames emerging from the bus moments before it explodes with a loud bang. Schoolkids can be heard in the background saying they" could have died" after being caught up in