The U.S. Food and Drug Administration on Thursday announced a nationwide ban on the sale and marketing of Juul Labs Inc. vaping and e-cigarette products. The federal agency cited "insufficient and conflicting" data in Juul's application to continue selling non-fruit-flavored products. The company must cease sales of the Juul vaping device and four types of e-liquid pods: Virginia tobacco flavored pods with nicotine levels of 5% and 3% and menthol flavored pods at nicotine concentrations of 5.0% and 3.0%. The agency said retailers should contact Juul with question about products they currently have on shelves or in their inventory. The sales and marketing ban does not restrict consumer possession or use of the popular devices; the agency does not enforce consumer possession or use of vaping or other tobacco products. The FDA has reviewed marketing applications from Juul and hundreds of other companies amid calls from anti-tobacco groups to crack down on products that led to a surge in youth vaping in the last decade. But advocates of these nicotine-delivering devices say they can help adult smokers kick the habit of smoking cigarettes or using other tobacco products. Juul did not immediately comment on the report.