Pointing to a "growing epidemic" of vaping by teens, Florida Attorney General Ashley Moody said her office will investigate more than 20 companies to look at how they are marketing and selling electronic cigarettes.

"It's illegal under Florida law to sell these products to anyone under 18, yet vaping among our youth is out of control," Moody said in a video announcing the investigation.

Moody's office released the names of 22 companies that will be part of the investigation, with the list including a mixture of Florida-based and out-of-state firms. Among others, the list includes vaping-industry giant JUUL Labs.