A firearm and explosive were seized Tuesday in N. Andover, Massachusetts – NBC Boston

Improvised explosives and a cache of more than 30 firearms were seized from a home in North Andover, Massachusetts, on Tuesday after a device detonated and damaged two vehicles, authorities said Wednesday.

Police shared an image showing assault rifles, handguns, high-capacity magazines and other weapons laid out on a table after Daniel Medina, 64, was arrested at his Village Green Drive home. The Massachusetts State Police bomb squad was called in to help, the agency confirmed.

Authorities were called to the scene after the explosion, according to the Essex County Prosecutor's Office and North Andover police. Medina reportedly tried to cover up the damage from the explosion with spray paint.

Many of the guns found by law enforcement — which also included a SWAT team and the U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives — lacked serial numbers, authorities said, and Medina's gun license had expired 24 years ago.

Medina pleaded not guilty to five felony counts, including being a felon with a firearm and vandalism of property, during a hearing in Lawrence District Court on Wednesday and was ordered held without bail until at least July 12, when he will have a dangerous hearing, officials said.

It was not immediately clear why investigators believe Medina possessed the weapons.

A large number of police officers were at the scene Tuesday afternoon, and Police Chief Charles Gray thanked the community for allowing the investigation to proceed.