A spate of suspicious fires lit simultaneously in Waihī on Saturday has raised fears there could be more than one firebug on the loose.
Waihī Fire Brigade chief fire officer Moe Stevens said two trucks and about 15 firefighters attended four separate fires at Waihī College on Saturday afternoon at about 4pm.
Two sheds including one that had horticulture equipment and a tractor inside had been set alight as well as a classroom and a bench.
The flames were ''up and running but we got there before they could take hold'', he said.
In all his 40 years on the job, Stevens said he had never encountered the situation he faced at the college.