The FDA is warning e-cigarette maker "Juul" about illegally marketing its vaping products as a safer alternative to cigarettes.

Federal Law states companies must show scientific evidence before marketing tobacco products as a better option. Juul has 15 days to comply with the law or risk fines, or an injunction. The warning comes as more deaths are being reported among a rising number of lung disease cases.

There have been five vaping-related deaths as the epidemic continues among teenagers.