SANTA ANA (CBSLA.com) — Firefighters Wednesday extinguished a four-alarm chemical fire at a warehouse in Orange County.

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The fire at La Rosa USA Inc. in the 2100 block of South Anne Street was reported around 1 a.m., the Orange County Fire Authority said.

The company makes nail polish, nail polish remover and acrylic nails. Its products include chemicals such as acetone, alcohol and glycerin, among others.

Investigators say the fire started outside in some pallets and then spread to the building.

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“When the units arrived on scene, there was a large fire. There were pallets on fire, containers, plastic, there were some leaking chemicals, flammable liquids,” OCFA spokesman Cpt. Steve Concialdi said.

Due to the intensity of the blaze, the more than 100 firefighters on scene were forced to attack it in defensive mode.

HazMat crews, along with the Orange County Health Department, Santa Ana Public Works and SoCal Edison, were sent to the scene.

The cause of the fire, which was knocked down at 7:12 a.m., was under investigation.

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No evacuations or injuries were reported due to the hazardous chemicals, officials said.