PELHAM, N.H. (CBS) – A New Hampshire man has been charged with a string of robberies and school threats, including a robbery he allegedly committed while wearing a Barack Obama mask.

Pelham Police said Ronald Szettella, 43, was arrested on Wednesday and charged with two counts of armed robbery and one count of criminal threatening.

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Szettella “has been keeping the Pelham Police Department’s Criminal Bureau busy for the past three years,” the department said.

According to police, Szettella called in a bomb threat to Pelham Elementary School in September 2013, robbed Gage Hill Farms Convenience Store at gunpoint in September 2014, and robbed the store a second time in September 2015.

Ronald Szettella, 43, of Pelham, N.H. (Image Credit: Pelham Police Department)

Ronald Szettella, 43, of Pelham, N.H. (Image Credit: Pelham Police Department)

In addition, Pelham police said they linked Szettella to two armed robberies in Salem, N.H., including one when he is accused of holding up a Dunkin’ Donuts while wearing a mask of President Barack Obama.

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While executing a search warrant at Szettella’s home, police found a BB gun believed to be used in the robberies.

The Obama mask was not found.

Szettella is scheduled to face the charges on Thursday morning by a video arraignment in Salem District Court.

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He is also expected to be charged with the two Salem armed robberies in the near future.