A fire in a Pukehina shed in the early hours of the morning was caused by spontaneous combustion of chemicals.
Pukehina Fire Brigade were called to a Pukehina Pde address about 1.10am to put out a fire in a workshop at the back of a property.
Senior firefighter Ivan Burgener said the shed had been filled with chemicals and adhesives as the man in the house made and repaired surfboards.
Mr Burgener said there had been a chemical reaction on the rags the man used or something similar, causing spontaneous combustion.
The fire took about 45 minutes to put out and no one was hurt.