NEWARK, N.J. (CBSNewYork) – A suspicious package caused to backups for travelers at Newark Liberty International Airport this morning after a device was detected during a TSA screening.

Port Authority police say the package was recovered from an Israeli citizen who had apparently arrived from Tel Aviv and was transferring to a United Airlines flight for Panama City, Florida.

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There was no evacuation of Terminal C, but police said the third level was closed for a brief time. Seven of the nine screening lanes were currently closed but reopened later in the morning.

The owner of the suspicious package apparently told police he was a trainer who was en route to help local police as part of a training seminar and the material was to be used in training.

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According to police, the passenger is in custody and the Essex County Bomb Squad was on scene at the airport. The device turned out to be harmless.