Hazardous materials appliances attended a fire in a block of flats in Te Kauwhata at 7.21am this morning.
The blaze on Waerenga Road was described as small by Fire Service Shift Manager Scott Osmond.
Osmond said precautionary decontamination was used on two firefighters as the dwelling was believed to be a methamphetamine laboratory.
Five appliances attended. It is unknown if anyone was in the dwelling when the fire erupted.