KEY POINTS
  • CBS, WarnerMedia and Viacom say they will no longer run e-cigarette advertising.
  • The decision comes days after WarnerMedia's CNN said it would no longer run ads for vaping products.
  • Concerns about Juul's advertising, in particular, were raised last week in a letter sent by the FDA.
Nick Gregory, a 26-year-old manager, vapes on a JUUL at Botany Bay in Lexington, Ky.

CBS, CNN and other major media companies are starting to pull e-cigarette advertising off their airways, as the death toll from a mysterious vaping-related illness continues to climb and health regulators across the world pull flavored vaping products off their shelves.

CBS decided to stop taking future e-cigarette advertising, a spokesman confirmed to CNBC on Wednesday. The decision comes nearly a week after CNN told The Daily Beast it would no longer allow vaping products to advertise on its network. CNN said it would reconsider the policy if research shows vaping products are not harmful.