Because Rolls-Royce stops at the intersection and waits for the red light, there is no behavior that hinders the fire truck from performing official duties. Moreover, Rolls-Royce was hit by a fire truck before it stopped. The fire truck hit the green belt first and then hit Rolls-Royce. This shows that there are some problems with the driver or vehicle of the fire truck. So there is no doubt that the fire truck is fully responsible, and the final compensation for this accident may be paid by its driver or its unit.
It can also be seen from the video that the taillights of Rolls-Royce vehicles have been sunken and may have been damaged. The trunk of the vehicle has also been knocked open and there are depressions, so generally speaking, there are many places that may need overhaul.
For fire engines, there are indeed some problems in the driving process of vehicles. Why hit the green belt? It is the driver's inexperience or inattention in observing the road surface. Or there is something wrong with the vehicle, which makes it impossible to brake in time, so the driver hopes to avoid collision by steering. The above is only a personal guess, and the specific situation needs to be subject to official notification.
Be sure to concentrate on observing the road surface and incoming traffic before and after driving. When you find any abnormal situation in the front car, you should step on the brakes in time and make way.