'No hooking' billboard curbs prostitution in Oklahoma City neighborhood

It's big, it's eye-catching, and residents of an Oklahoma City neighborhood say it's making the area a nicer place to live.

It's a billboard proclaiming the neighborhood a "no hooking zone."

This sign went up last week, and people say no prostitutes have been spotted doing business since the grassroots billboard was paid for out of the pockets of a group of citizens who were fed up with the illegal activity.