Senior Northland community leaders are echoing police concerns that the Karikari Peninsula blazes could be the work of a serial firebug.
A 130ha blaze this week that razed holiday homes was the 14th suspicious fire in the area in 18 months.
Pilot John de Ridder and Department of Conservation ranger William Macrae died after the helicopter they were in plunged into the sea as they tried to help fight the fire on Wednesday night.
Kaitaia fire chief Colin Kitchen last night called for the community to report anyone they think may have had something to do with the blazes.
"I believe a good number of these fires are deliberate and could be connected," Kitchen said.