Federal prosecutors on Thursday brought terrorism, kidnapping, and firearms charges against five people who were arrested last year.

Authorities allege the Amalia, N.M., compound the adults had been living at until their arrest in August served as a terrorist training camp.

Jany Leveille, 36; Siraj Ibn Wahhaj, 40; Hujrah Wahhaj, 38; Subhanah Wahhaj, 36; and Lucas Morton, 41; were taken into custody last year after they were found living with 11 children at the compound that was in squalid conditions and had no water or power.

Ibn Wahhaj’s 3-year-old son was also found dead on the property. The members of the group are accused of kidnapping the child, who had severe health problems and later died.

The five were originally charged with weapons offenses.

“The superseding indictment alleges a conspiracy to stage deadly attacks on American soil,” U.S. Attorney John C. Anderson said in a statement Thursday.

Assistant Attorney General John Demers said those attacks were being planned against federal law enforcement officers and members of the military.

The indictment alleges the defendants gathers weapons and other supplies at the New Mexico compound, where a firing range was also built to train for a potential attack.