KNOXVILLE — Federal agents have served a second search warrant as part of the investigation into Knoxville-based Pilot Flying J.

U.S. Attorney Bill Killian wouldn't give specifics today or say where the warrant was served.

"I can tell you that a second search warrant was issued last night," Killian said. "It's ongoing."

No arrests have been made so far. Killian wouldn't say whether any arrests appeared imminent, although he indicated the search could be part of a long-term investigation.

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