Six people have been indicted for allegedly distributing "large amounts" of heroin and fentanyl on the North Shore.

The office of Massachusetts Attorney General Maura Healey announced a grand jury has indicted Richard and Ilona Castillo of Danvers, aged 30 and 27, respectively, with allegedly running the opiate distribution network. John Eaton, 30, Samantha Pike, 26, Brett Eglin, 26, and Gary Collum, 50, of Ipswich, were indicted for allegedly distributing the drugs.  

Bags containing heroin, fentanyl, a ledger, scales and at least $75,000 of cash were seized from the Castillos' home in Danvers and two residences in Ipswich, according to the Attorney General's Office.

“We are losing four people a day to the heroin and opioid crisis," Healey said in a statement. "Our office is committed to working with law enforcement to combat this epidemic and will aggressively prosecute those who bring these lethal drugs into our communities and into the hands of those struggling with addiction.”

The six were arrested in December by Massachusetts State Police assigned to the Attorney General’s Office, and Ipswich Police Department.

The Attorney General's Office said it and members of the U.S. Drug Enforcement Agency and the Ipswich Police started investigating the alleged distribution network last May.