Shocking footage shows an arsonist dousing a vehicle in petrol before setting it alight - and the ute blowing up in his face.
The offender was probably injured likely to have needed medical assistance, police say.
Waikato police say they are extremely concerned.
![The arsonist pours petrol over the vehicle before setting it on fire and then explodes in his face. Image/Waikato police](https://www.nzherald.co.nz/resizer/v2/T2FAEIHSD4SR4W2Z3GWX32XKTI.png?auth=3388fcf555ea2cf72e483d36b4daa0fe42fdc58c62caaed63714a2f5ba101950&width=16&height=9&quality=70&smart=true)
Detective Sergeant Andre Kavanagh said the vehicle was torched at a commercial address in Killarney Rd early on Monday morning.