Units from Station 33, Rescue Squad 3 and Medic 2 were dispatched to Route 144 in front of National Armory for vehicle accident with rollover. E331 and Ambulance 339 on scene with single vehicle rollover with everyone out. Crews started checking the 4 people that were in the vehicle for injuries. Rescue Squad 3 on scene provided lighting and assisted. One patient was transported to FMH by Ambulance 339.