The number of people in the UK who have tried e-cigarettes has almost doubled in just two years, according to a new study.
The research, from scientists at Imperial College London, examined e-cigarette use - and attitudes to the devices - across Europe between 2012 and 2014.
The paper, published in the journal Tobacco Control, found that the proportion of people in the UK who had tried an e-cigarette had increased from 8.9 per cent to 15.5 per cent - higher than the European average.