Machine malfunction caused early morning factory fire Tuesday

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IOSHA is investigating an overnight fire at an east side factory.

The fire started just before 2 a.m. Tuesday at Mid America Extrusions near 30th Street and Emerson Avenue.

Firefighters say the explosion and fire started due to a malfunction in a machine that heats up aluminum at the factory.

They say a fireball actually shot up and caught the building's roof on fire.

No one was hurt.

Damage is estimated at $20,000.