San Francisco, June 26 -- San Francisco has become the first major city in the US to ban the sale of electronic cigarettes, a measure that affects both brick-and-mortar stores and online retailers.

The 11 members of the city and county's board of supervisors on Tuesday unanimously voted in favour of prohibiting the sale of this product, arguing that e-cigarettes have been gaining popularity among young people, which could pose a risk to their health, reported Efe news.

The glaring contradiction remains that the city - widely seen as one of the most progressive places in the country - has banned the sale of e-cigarettes but continues to sell traditional tobacco (considered to be more provenly harmful by experts) without problems, as well a...