A Princeton man was arrested and charged Thursday after police allegedly found nine explosive devices in his truck, the Princeton Police Department said in a release .

Jason Baldarelli, 27, pleaded not guilty in Leominster District Court to possessing explosives. He is being held on $7,500 cash bail, court records show.

The arrest stemmed from the report of explosions on Wheeler Road on Monday around 4 a.m. An investigation identified Baldarelli as a suspect, and officers obtained a search warrant, police said.

Multiple law enforcement agencies, including the Massachusetts Joint Terrorism Task Force and the Massachusetts State Police Bomb Squad, worked to conduct a planned traffic stop on Thursday at 7 a.m., where officers found nine explosive devices in Baldarelli’s truck, officials

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