(UNDATED) - NASCAR star Tony Stewart has been questioned but not charged by police after an altercation at a Sydney track.
The 39-year-old Indiana driver, who is in Australia competing in Sprint-Car Races, was released after being interviewed at the police station.
Several auto racing websites reported that the altercation at Sydney Speedway resulted from Stewart being upset about track conditions and that the other man involved was Speedway co-owner Brett Morris.
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