Yakima Fire said marijuana grow operations can often overload a building's electrical system causing the risk of a fire. With weed now legal in Washington, rescuers expected to see more marijuana-related fires.
"Grow operations have a much higher chance of catching fire than a normal house. Up to 40 times more likely," said Hans Solie from Yakima Fire Department.
Firefighters said health hazards are a concern. Mold and mildew often develop in illegal growing operations.