LOS ANGELES (Reuters) - Five men suffered severe burns on Monday when an explosion ripped through the garage of a Northern California home that authorities suspect was being used as a make-shift hash oil laboratory.
Officers responding to the house in Redding, some 150 miles north of Sacramento, shortly before 1 a.m. found the five badly burned men and transported them to area hospitals, the Redding Police Department said in a written statement.
"The investigation revealed evidence indicating the garage had been used to illegally manufacture concentrated cannabis. The case is under investigation," the statement said.
Deputy Fire Chief Gerry Gray tweeted that there had been a "possible honey oil explosion" at the home, adding: "becoming too frequent."
"Honey oil" extraction is the process of drawing potent hash oil from marijuana plants using butane, a highly flammable gas.
(Reporting by Dan Whitcomb; Editing by Eric Walsh)