ONTARIO (CBSLA) — Firefightersfought a massive blaze in a commercial building early Friday, the second big commercial fire in the area in a week.

Flames broke out at a building on East Main near South Plum Avenue at about 1:30 a.m. Friday. The industrial area is alongside an Amtrak rail line.

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Firefighters got a handle of the flames by 5 a.m. But the department noted that it was the second big commercial fire to break out in the area this week.

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On Monday, a vacant building in the area also burned down.

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No injuries were reported from either fire.