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MODESTO, Calif. (KTXL) – Fire crews responded to a large 4-alarm fire at a pallet yard in Modesto.

The fire started on Reliance Street around 3:30 a.m. Friday and quickly grew, threatening several commercial buildings nearby.

Fire officials say the flames were confined to the pallet yard. 

The Stanislaus County Fire Investigation Unit is on scene investigating the cause of the fire.