Fire on a LH2 tanker-truck

A trailer-tractor carrying a liquid hydrogen tanker took fire on a highway. The fire was due to a malfunction of the diesel engine fuel injection system. The fire engulfed the whole cabin of the tractor.
The local fire brigades were able to suppress the fire in 15 minutes, before a possible escalation with damage to the liquid hydrogen tank. From a video of the event, it appears that the LH2 tank was not touched by the flames coming from the cabin and the front tires. Possibly, the heat affected only the front surface of the tank.
One of the source mentioned that the fire fighters strategy implied also the cooling of the liquid hydrogen tanker. This is however not confirmed by a video taken by a drone of a neighbour.

The INITIATING CAUSE was a malfunction of the engine fuel injection system, which started to spray diesel around.
Despite the fire destroyed the truck cabinet, it did not affect the cryogenic tank.
The ROOT CAUSE is unknown, nevertheless hydrogen-system-independent.

diesel engine

It is unknown if the tanker was containing liquid hydrogen or was almost empty, with only gaseous hydrogen.

The driver cabin was destroyed. No damage to the liquid hydrogen tank

The fire-fighting intervention involved 6 fire brigade trucks and the fire was extinguished in less than 15 minutes. One of the source mentioned that the fire fighters strategy implied also the cooling of the liquid hydrogen tanker. However, a video taken by a drone of a neighbour does not show this during the intervention of the fire brigade trucks, which concentrated exclusively on the tyres and cabin fire.

This incident represents a well-known accidental scenario related to conventional road incidents, in which the hydrogen tank is subjected to a localised fire.
In this case, however, the flames do not seem to have engulfed the liquid hydrogen tank. Despite a possible unspecified heat flow impinging onto its front end, it seems that the internal shell of the cryogenic tank did not experience any significant change in temperature which could cause an increase of pressure and the activation of the pressure control and relief system. Tis may have also to do with the fact that the fire lasted only 15 minutes.
Unfortunately it is unknown if the tank was full or empty.