Florida sheriff's office arrests 59 sex offenders in joint operation with US Marshals

A two-month crackdown on registered sex offenders and predators in one city led to 59 arrests after authorities conducted more than 500 compliance checks, according to the local sheriffs office.

The Jacksonville Sheriffs Office said its Offender Tracking Unit teamed up with the U.S. Marshals Service for "Operation Riverwatch," which ran across Jacksonville from June 15 through Aug. 14.

Detectives spent more than 230 hours conducting 535 checks of registered offenders and predators, the sheriffs office said.

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The checks led to the arrests of 59 men and women, ranging in age from 21 to 76, who authorities said violated rules they were required to follow after being released from prison or jail.

"These offenders found themselves back behind bars for breaking the rules," the sheriffs office said in a Facebook post.

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Florida law requires registered sexual offenders and predators to follow certain registration and reporting requirements. Violations can result in felony charges and additional registration requirements, depending on the offense, the sheriffs office said.

The sheriffs office did not say in its post which requirements each of the 59 people . Fox News Digital has reached out to the sheriff's office for more information.

"Keeping watch on local sexual offenders and career offenders to keep you and your families safe," the sheriffs office wrote.