Hundreds of cars are said to have had their tyres let down by a new group that calls itself the Tyre Extinguishers. The group wants to discourage people from getting - and ultimately stop the urban use of - SUVs and 4x4s, which are known to be bad for the environment.
As such, it is going round deflating the tyres of SUVs in Bristol and other built-up areas. It's important to note that the group is not causing irreversible damage by slashing tyres; instead it lets air out in order to cause what it admits is "inconvenience and expense for their owners".
But is doing so legal? Are Tyre Extinguishers breaking the law in their actions?