Police at Raleigh-Durham International Airport investigated a "threatening note" found in the airport Wednesday afternoon.
Police did not identify a "credible threat" to the security of the airport or its passengers, RDU spokesman Patrick Glace said in a statement Wednesday. Airport operations were not affected by the investigation.
The note was found in Terminal 2 on Concourse D, Glace said.
"Airport officials took the threat very seriously and deployed a variety of safety measures to ensure that the airport was safe for passengers and employees," Glace said.
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Law enforcement radio traffic at the time of the investigation indicated that the note was reported and found within a bathroom stall.
Glace said "airport tenants" were informed of the note and that the investigation was "thorough."