London is taking a step towards curbing the city's childhood obesity rates.
On Friday, London Mayor Sadiq Khan announced a ban on junk food advertising on the city's public transit.
The ban covers food and non-alcoholic drinks high in fat, salt and sugar. The Mayor's Office says food and drink brands and restaurants will still be able to advertise on public transit, but only for their "healthier products."
The ban is part of a larger push from Khan to promote healthier lifestyles for children in London. Kahn created the city's first Child Obesity Taskforce and launched the London Food Strategy proposal which is set to be published in December.
The Mayor's Office says almost 40 percent of London children between the ages of 10 and 11 years-old are considered overweight or obese, which is one of the highest rates for all of Europe.
The ban is set to go into effect Feb. 25.