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Stun gun found on JetBlue plane

Federal officials are trying to determine how a stun gun resembling a cell phone was brought on a JetBlue flight on July 8.

Bryan Travers, a spokesperson for the Newark division of the FBI, said in a statement that the device did not appear to be part of any plot or attack. 

A cleaning crew discovered the stun gun in a seatback pocket on Flight 1179, which had flown from Boston and arrived at 10:20 p.m. at Newark Liberty Airport.

Port Authority spokesman Steve Coleman told the Newark Star-Ledger that it is unclear who the stun gun belonged to or how it was brought on the flight, which was nearly at capacity with 96 passengers out of 100 seats.

The TSA and FBI are currently investigating the incident.

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Rebecca Ruiz is a senior editor at msnbc.com. Follow her on Twitter.