Emergency companies have been referred to as to the fireplace on Hazel Highway, Salisbury East, at about 2.30pm.
Firefighters extinguished a small blaze which had brought about minor harm to the kitchen of the house.
Three occupants have been evacuated from the house through the hearth, together with a 53-year-old man who was taken to hospital with non-life-threatening burns on his legs.
Throughout their investigation of the fireplace, police allege they discovered proof of drug manufacturing, together with chemical substances and tools within the kitchen.
A 25-year-old man, a 62-year-old lady, and a 53-year-old man have been all arrested and are anticipated to be charged with drug manufacturing later as we speak.
The lady is anticipated to be additional charged with trafficking after police searched her and allegedly discovered about 30 grams of meth.
