Investigators are looking into an incident January 27 in which a half dozen tractor trailers were damaged by fire in the parking lot of XPO Logistics on Corporate Drive in Kirkwood.

Five Mile Point firefighters responded to the blaze shortly before 2 p.m. and found four trucks actually involved in flame with other vehicles sustaining damage from the heat.

The fires were out in less than a half hour and there were no reports of injuries.

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