Arizona law enforcement busted more than three dozen people in an undercover operation targeting child sex crimes and human trafficking, the Phoenix Police Department said Friday.

For Operation Broken Hearts, agents put ads on websites and apps commonly used by suspects seeking sex acts with children.

Phoenix police said the operation was part of a nationwide effort to get predators off the streets and into jail.

The 37 people arrested ranged in age from 21 to 66, ABC15 reported.

Phoenix police joined the police departments of Tempe, Mesa, and Chandler, Homeland Security Investigations, and the Attorney General’s Office for the operation.

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[Featured image: Phoenix Police Department]