By CBSLA Staff

LOS ANGELES (CBSLA) – Firefighters who battled a house fire in Winnetka early Wednesday morning stumbled on an illegal marijuana grow inside the home, prompting a hazmat investigation.

Nov. 11, 2020. (CBSLA)

Los Angeles Fire Department crews responded to the 7500 block of North Irondale Avenue at 11:42 p.m. Tuesday night to find a single-story home ablaze.

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They quickly extinguished the fire within about 20 minutes, the fire department said.

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However, firefighters found several barrels containing an unidentified substance and called for a hazmat crew.

Early Wednesday morning, hazmat determined that the home was being used as an illegal marijuana grow.

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The exact cause of the fire is under investigation. It’s unclear if any arrests were made.