A massive three-day, multi-agency law enforcement operation has resulted in the arrest of 150 people on charges of sex trafficking, according to the FBI. The operation – dubbed Operation Cross Country 7 – was led by the FBI, but involved the National Center for Missing and Exploited Children as well as state and local law enforcement agencies in 76 cities across America.

The operation also resulted in the rescue of 105 children between the ages of 13 and 17, as well as 129 seizures of cash, guns, vehicles, drugs, and more. The 150 pimps arrested in the sweep face a wide variety of charges on both the state and federal level, relating to the drugs, guns, and, most importantly, sex trafficking.

Ron Hosko, assistant director of the FBI Criminal Investigation Division, said that a better understanding of the child sex market and of the internet’s role in sex trafficking have a great deal to do with the increased success of this operation. Hosko said that this operation was between 30% and 40% more effective at identifying both the pimps and children involved than previous versions of Operation Cross Country.

You can see video of the press conference where Hosko announced the operation below: