More than 20 suspects, including many alleged gang members, have been arrested, according to the Suffolk County district attorney.

Officials say all have been charged with selling or possessing narcotics and illegal guns.

A 16-month investigation turned up hundreds of grams each of fentanyl, heroin, methamphetamine and cocaine, along with 12 illegal firearms.

Several of the suspects are accused members of a gang known as the 9-Trey Bloods.

The indictment covered 63 separate crimes dating back to 2021, including the sale of fentanyl that led to the fatal overdose of a 25-year-old woman in November at the Rodeway Inn on Veterans Highway. That victim, Yasmin DeLeon, was the mother to a 4-year-old son.

The victim's mother-in-law, Daree Mimms, says it's a relief knowing that someone is being held accountable for DeLeon's death.

“If you deal dangerous and illegal drugs in Suffolk County and illegally use firearms in your drug dealing and gang activities, be advised that we are coming for you and we are going to hold you responsible,” says Suffolk District Attorney Ray Tierney.

Tierney says 350 young people in Suffolk County have died from fentanyl in the last year alone.

Some of the 21 suspects are in custody, while others posted bail.