CONCORD, N.H.  — A New Hampshire man has been sentenced to over three years in federal prison for possession of an improvised explosive device.

Ryan Cortina, 34, of Somersworth, pleaded guilty in April in a plea agreement with prosecutors. He was sentenced in federal court on Monday.

According to court documents and statements made in court, Somersworth police received information from a confidential informant that Cortina had destructive devices at his home and showed him a “grenade” that he had built.

Officers executed a search warrant at his home and found five suspected destructive devices in a duffle bag, including an improvised explosive device.

“Thanks to good police work, law enforcement officers were able to secure the potentially deadly device and prevent individuals from being harmed,” U.S. Attorney Jane Young of New Hampshire said in a statement.

An email seeking comment was sent to Cortina’s lawyer.

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