A commuter bus in Stockholm, Sweden exploded when it hit a barrier on Sunday.
The bus was heading towards a tunnel in the center of the city when it hit a barrier restricting tall vehicles from entering the tunnel. The bus, which runs on natural gas, hit the top of the barrier where its fuel tank is located. The bus hit the top of a tunnel right on the fuel tank.
Thank goodness the bus was apparently not in service at the time. The bus driver was the only one on board and had to be taken to the hospital.
With the enormous explosion and plume of black smoke many people thought it might be a possible terror attack, but the incident was merely an accident.
The fire took about a half hour to extinguish.