Fire investigators will this morning be back at the scene of a large blaze in the Waikato region, after it was ruled to be suspicious.
Four fire trucks were called to Logan St, in Tokoroa, at 9pm on Tuesday night after reports of a fire on the side of a vacant commercial building on the street.
Fire and Emergency shift manager Daniel Nicholson said the blaze had spread into the roof space.
![Four fire trucks attended and firefighters took 40 minutes to put the blaze out. Photo / Impact Photographics](https://www.nzherald.co.nz/resizer/v2/XMEFRTJ2AUF7LRG4JZJCBBLTZ4.jpg?auth=82db3c8068f7879e7086fa369755f440a4c490cb85592b4579f8fad410491be1&width=16&height=9&quality=70&smart=true)