Fire on a hydrogen bus during refuelling

The fire developed an early morning on a hydrogen bus at a refuelling station for public transport. According to the bus company release, one bus was destroyed by fire suring refilling and the dispenser of the hydrogen fuelling station was damaged. The stationary hydrogen storage and the rest of the installation were not affected.
The fire Department was called to site responding to reports of a fire on the property. A section of the highway was closed as firefighters.
Explosions were heard and seen from the bus that had just been filled. Despite the fact that some news speak of the explosion, mentioning even the storage tanks, the evolution of the fire visible from the footage of a video do not confirm any explosion-like event. The fire develops rather incrementally at the back of the bus, where probably the fuel cells are situated, and endgulph gradually the rest of the bus.

The INITIATING CAUSE was probably a leak on the onboard tanks during filling.

on-board hydrogen storage, dispenser

The hydrogen refuelling station and the FC-buses fleet were recently been deployed.

DESCRIPTION OF THE UNIT
The bus was mounting hydrogen type 4 storage tanks (external fully wrapped carbon fibre reinforced shell with polymer internal liner).

The bus was valued at $1.1 million. Due to the stop of all FC-bus fleet (10 buses, representing 10% of the large-vehicle fleet), passengers may experience delays and temporary service disruptions.

The video does not show any intevention to stop the fire. The event occurred at night, and probably there was no worker on site when the fire started.