Seattle police said firefighters found hundreds of pot plants growing at a house where a fire broke out in the Seward Park neighborhood.
Firefighters were dispatched to the home in the 5800 block of Seward Park Avenue at 7:20 a.m. Wednesday.
Seattle fire spokesman Kyle Moore said flames were roaring 10 feet above the house when crews arrived.
Police said as many as 200 marijuana plants were found growing in several rooms in the basement.
No one was home at the time of the fire.
Neighbor Marcia Bartholme said she woke up to the sounds of sirens and saw the house across the street was on fire.
“The blaze was reaching into the sky at that point, and the next door neighbors were spraying with their garden hose,” said Bartholme.
The Seattle Police Department's narcotics unit is investigating the fire. The wiring to power the illegal grow operation in the basement overheated and sparked the fire, Seattle fire said.
“There appears to be some jimmy-rigging of the wiring and around the electrical box. City Light is out here investigating that,” said Moore.
Damage to the home and its contents is estimated at $70,000.