The husband and wife who lived in the Centre Hall home were both indicted by a grand jury Tuesday on federal charges for explosives and firearms offenses.

According to the Department of Justice, 50 year old James Woodring and his wife, 34 year old Christina Woodring, conspired to manufacture and deal in explosives from May first through the 18th, 2016.

Their home on South Pennsylvania Avenue exploded last Wednesday night.

Officials also said the post-blast investigation revealed the cause of the explosion was due to the detonation of explosives in the residence. They would not specify further. 

According to a press release from the Department of Justice, the Woodrings “conspired to purchase and transport commercial grade fireworks, to increase the fireworks’ power and volatility and sell them, all without a license to do so.”

James Woodring was arrested and charged last Friday on similar offenses, including manufacturing and dealing explosives without a license, transporting explosive materials and illegally possessing a stolen firearm.

The Department of Justice alleges that James Woodring possessed a stolen semi-automatic pistol, a shotgun, a pump rifle and a rifle. They said as a previously convicted felon, he is prohibited from possessing them.

The government is seeking forfeiture of the firearms.

This is not the first time James Woodring has been connected to dealing explosive materials without a license. He was also charged in 2010.