WILLITS, Calif. (AP) -- A Northern California man was seriously injured and his home damaged in an explosion and fire police suspect were caused during an attempt to make "concentrated cannabis."
The Santa Rosa Press Democrat reports that 38-year-old David Madrigal of Willits was flown to a burn center for treatment.
Fire officials say the explosion at Madrigal's house over the weekend was the fifth such incident alleging involving illegal drug labs exploding and injuring people in the region this year.
Flammable solvents such as butane are used to manufacturer concentrated cannabis, which concentrates the active ingredient in marijuana.
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