Emergency services stumbled on 200 cannabis plants at the scene of a house fire in Tauranga.
Fire services were called to a fire in the basement of a house on Hilltop Rd, Parkvale, before 5pm yesterday.
About 200 cannabis plants were found to be growing in the basement and the fire was believed to have started by re-routing electricity.
"This was a sophisticated growing operation," Detective Senior Sergeant Greg Turner said.
He said diverting power was a dangerous practice, but unfortunately common when cultivating cannabis.