By Dillon Thomas

FORT COLLINS, Colo. (CBS4)– In a recent prostitution sting, the Fort Collins Police Department received more than 440 responses to online ads for sexual services.

READ MORE: 2 Tigers At Pittsburgh Zoo Test Positive For COVID-19

Investigators said more than 20 of the 444 responders physically showed up at a sting location, expecting sexual encounters, but were met instead by officers.

Police said the ads were placed on buy, sell and trade websites. While 444 responded, only 21 were cited. In total, those who physically responded to the ad agreed to pay $2,745 in exchange for sexual acts.

READ MORE: Coloradan Nichole Ayers Chosen For NASA's New Astronaut Candidate Class

Police said the sting was conducted to help battle to issue of human trafficking in Larimer County.

“Many citizens don’t believe prostitution or human trafficking is an issue in Northern Colorado,” said Fort Collins Police Officer Rob Knab.

MORE NEWS: After Audit Reveals More Colorado Unemployment System Fraud, Some People 'Still Fighting' For Payments

Dillon Thomas is a reporter at CBS4 and a Colorado native. He believes everyone has a story, and would love to share yours! You can find more of his stories by following him on Twitter, @DillonMThomas.