A group of 53 leading scientists has written to the World Health Organisation (WHO) urging the body not to classify e-cigarettes as tobacco products.
The experts say e-cigarettes are "part of the solution" in the fight against smoking-related diseases and their use should not be discouraged.
Leaked documents from a WHO meeting suggest the organisation sees e-cigarettes as a "threat" and wants them bracketed along with other products containing nicotine, including regular cigarettes.
More top news
Concerns about the way Google and other multinationals pay tax have been around for at least three years.
BT is launching a "breakthrough" new service aimed at completely eradicating millions of nuisance calls for its customers.
Wintry weather into the weekend