Thick smoke can be seen and loud "booms" can be heard in the background.
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There was also a rush to get people to safety.
SEE MORE: Rockdale fire destroys warehouse, semi trucks at Longhorn Trucking
"Get out of the building! Go!" one officer yelled.
Rockdale fire captured on police bodycam
Longhorn Trucking owns the property where the fire took place..
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The large blaze engulfed a warehouse and a number of semi trucks parked around the buildings. Emergency crews worked to contain it for more than an hour.
Large fire breaks out at Rockdale truck repair shop
The Manhattan Fire District, which responded to assist with fighting the fire, said it happened at a truck repair shop. There were no reports of any injuries.
Thick black smoke billowed from the building and trucks as fire crews sprayed water from firetrucks. The smoke was so thick and abundant, it was visible on ABC7's Doppler 7MAX radar.
Radar picks up smoke from Rockdale fire
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The fire appeared to be largely contained and extinguished shortly after 5:30 p.m., though firefighters remained on scene fighting hotspots.
The cause of the blaze was still unknown Wednesday.
Rockdale is southwest of Chicago, near Joliet.