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WELD COUNTY, Colo. (KDVR) — Crews responded to a large fire burning at a tire recycling facility in rural Weld County on Wednesday evening. Firefighters and heavy equipment operators battled the fire throughout the night and into Thursday.

As of 7 p.m. Thursday, the fire was out. Crews will remain on scene to extinguish flare-ups.

According to the Platteville Gilcrest Fire Protection District, the fire started shortly before 5:30 p.m. Wednesday near County Roads 26 and 41. The location is northeast of Fort Lupton and southeast of Platteville.

The incident started as an equipment fire and spread to nearby tires.

Seven piles of tires spread across two acres were burned.

PGFPD requested the assistance of an air tanker.

In all, 12 agencies responded to the fire.

No injuries have been reported.

It is unknown what caused the equipment to set fire.