Walmart, in the United States, has stopped selling electronic cigarettes because of a growing tangle of regulations.
According to U.S. media, Walmart said in an internal memo Friday that e-cigarette sales will stop once its existing stock runs out.
In the memo, Walmart cited increasily complex regulations at the federal, state and local level... following at least eight deaths... and hundreds of cases of vaping-related illnesses.
South Korea, meanwhile, has reported no deaths or illnesses from the devices so far, but the health ministry has advised people not to use them.