Massive blaze tears through La Habra commercial building on July 4th

LA HABRA, Calif. (KABC) -- Crews battled a massive commercial building fire in La Habra on the Fourth of July.

The fire broke out on South Monte Vista Street.

Los Angeles County firefighters were calling it a second-alarm fire, which was raging dangerously close to other buildings.

It's not clear yet what sparked the flames.

The La Habra blaze was one of several fires burning across Southern California on Saturday night as people celebrated Independence Day.

This is a breaking report. Come back to this page for updates.

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Firefighters moved into defensive positions as the fire burned out of control on Figueroa Street near Rosecrans Avenue and the 110 Freeway