TULSA - Four rental trucks went up in flames early Thursday.
The fire started just after 3 a.m. at the Budget Rental lot at 12th & S. Harvard Ave., in midtown Tulsa.
One box truck caught fire and spread to three others.
Two of the trucks were destroyed.
The other two were heavily damaged.
Investigators are looking into the cause and are suspicious because the gas cap was off on at least one of the trucks.
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