WATSONVILLE (CBS SF) — A young Watsonville couple was arrested Monday morning after an alleged concentrated cannabis manufacture operation exploded in their apartment, endangering three children.

At about 12:10 a.m., police, firefighters and paramedics responded to a report of a large fireball on the balcony of 485 Holohan Road, apartment 204.

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Police and firefighters found “an overwhelming amount” of white smoke emanating from the balcony and inside the apartment and identified the source as the apartment’s balcony, police said.

A 3-year-old boy, two girls aged 13 and 15 and a 38-year-old evacuated the apartment along with the suspects, 19-year-old Maria de la Luz Lopez and her fiancé, 20-year-old Israel Alamillo.

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Lopez and Alamillo admitted that they had been manufacturing butane honey oil, a form of concentrated cannabis, when the explosion occurred.

“Although they both knew producing BHO is a dangerous process, they proceeded to do so as they advised WPD officers it was not their first time manufacturing BHO,” Watsonville police Sgt. Tony Figueroa said in a statement.

The boy was taken to Watsonville Community Hospital as a precautionary measure for smoke inhalation.

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Lopez and Alamillo were arrested and booked into the county jail on suspicion of child endangerment and manufacture of a controlled substance, Figueroa said.

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