At Rising Sun and Godfrey, Philadelphia firefighters were on the scene of a fire at a tire warehouse.
About a dozen firefighters were spotted from Chopper 6, separating out the burning tires and putting them out.
Investigators say the fire appears to have been intentionally set.
Firefighters say the flames did not extend to any buildings.
Wednesday morning's fire is not far from the scene of a massive warehouse fire Monday night in Philadelphia.
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