An indoor marijuana garden nearly went up in smoke Wednesday night in Federal Way.

South King Fire and Rescue responded to a call at 8:23 p.m. May 30 from the 2900 block of SW 342nd Place in Federal Way.

A neighbor called to report heavy smoke coming from the garage area of the home next door. Crews arrived in less than five minutes, according to SKFR. The initial extinguishing of the fire was quick.

However, the fire extended into the attic portion and a remodeled roof structure, creating many “hidden voids” that took more than an hour to find and extinguish, the fire district reports.

The electrical fire appears to have been caused by an illegal service panel modification at the home, the fire district reports. Puget Sound Energy is investigating.

The damage is estimated at $150,000. One firefighter was treated and released at St. Francis Hospital for an eye injury.

Federal Way police responded to assist fire crews at the scene. Firefighters reported that upon entry into the burning house, they located a large marijuana grow operation, according to a police spokeswoman.

Narcotics detectives responded, conducted a search warrant and dismantled the grow operation. The owner of the property rents the house and was not aware of the grow operation, police said.

Federal Way police have not identified or arrested any suspects at this time, and the investigation is ongoing.