One of four suspicious fires along a stretch of roadside west of Taupo this afternoon destroyed an area of native bush and came perilously close to a rural home.
A helicopter with monsoon bucket was called in to assist firefighters extinguish the largest of the four fires.
The blaze which was fanned by strong southwesterly winds spread through a roadside fence into a large gully of native plantings and came within about 100m of a home.
One of the other fires lit near a farm gateway destroyed a small patch of roadside grass and native plantings. The other fires a short distance away were extinguished before causing any damage.
Pumicelands rural fire manager Roger Nelson said investigations into the cause of the fires were underway but it was highly likely that all were deliberately lit.