Classifieds website Backpage.com has been seized and shut down by the FBI.

The FBI confirmed Friday that agents also raided the Sedona home of Michael Lacey, the founder of Backpage.com.

Backpage.com has been under investigation for years for claims that the site facilitates sex trafficking on their adult ads page.

The site allows users to post ads for ‘escorts’ and investigators say many of the ads are actually for underage girls.

The FBI seized the website because it was allegedly being used to facilitate crime. The FBI has done this before with other sex trafficking websites and online pharmacies.

There are 17 victims named in the documents who are both adults and children who say they were forced into sex trafficking.