Four-ounce bags of marijuana. Photo from Wikimedia Commons.

Updated at 7 p.m. Aug. 6, 2015

Federal agents broke up a marijuana cultivation and hash oil manufacturing operation Thursday at a home near Helix High School.

Investigators with the U.S. Drug Enforcement Administration served a search warrant at the residence on Harbinson Avenue in La Mesa on Thursday morning.

The officers made three arrests and seized about 100 cannabis plants, a significant amount of hash oil and a “sophisticated” apparatus being used to extract the liquid drug, DEA spokeswoman Amy Roderick said.

City firefighters and a county hazardous materials team were called in to de-pressurize the equipment and safely rid it of butane, a compound used in the illegal manufacturing process.

The suspects all lived at the home, according to Roderick. Their ages were not immediately available.

—City News Service

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