Regulating electronic cigarettes is important to stop their promotion to non-smokers and youth, according to a World Health Organization (WHO) director.
Dr Douglas Bettcher, Director the Department for Prevention of Noncommunicable Diseases said the rationale the regulation was "to maximize the potential of e-cigarettes and similar devices and minimize the risks of these products."
He added that the organisation also aimed to "prevent the tobacco industry from undermining the great success we have seen in tobacco control, because, let’s face it, the tobacco industry is not a major producer and manufacturer of e-cigarettes and related products."
More top news
Fire service confirms that two buildings have collapsed in an explosion thought to have been caused by a gas leak.
Famous global landmarks fell dark for 60 minutes to mark Earth Hour, a campaign urging awareness and action on climate change.
Police have shut off part of the famous Las Vegas Strip after a gun man barricaded himself inside a bus after killing at least one.