Strange visitor

One of our neighbours (three different apartments in one building) had a strange visitor. This fire brigade truck was parking at their parking space.
As the licence plate shows, a so-called short-term licence plate, in this case valid until 22 September 2024, the truck is not properly registered yet. Either because it is being tested or because it is transported to another location to be registered there.
Depending on the next owner of the truck, fire brigade or not, the rotating beacon and horns will have to be removed, else it won't pass the MOT test. Only emergence vehicles are allowed to have those.