Fifteen-year-old boys in Scotland have the highest rate for smoking cannabis according to a new report from the World Health Organization (WHO).

The study, external found that nearly a quarter (23%) of boys aged 15 in Scotland surveyed said they had tried the Class B drug at some point.

In one of the largest studies of its kind the WHO examined data from 280,000 children aged 11, 13 and 15 from 44 countries around the world.

The survey also suggested that the UK has more of an issue with under-age vaping than many other countries.

The survey asked children living in Europe, Central Asia and Canada about their use of cigarettes, vapes, alcohol and cannabis.

From the Scottish sample, which involved 4,000 teenagers, 23% of 15-year-old boys said they had smoked cannabis within their lifetime, while 16% of girls the same age said the same.