TEENAGERS are being warned to take extra care on the capital's roads as tonight's clock change will cause darker mornings.

Clocks will go forward by one hour at 1am on Sunday morning, and road safety campaigners say this can lead to an increase in accidents in the early-morning rush hour.

Ben Plowden, director of Better Routes and Places at Transport for London, said: “Our tireless efforts to highlight the issue of teen road safety have helped reduce the number of teenagers killed or seriously injured on London roads by 23 per cent since 2000.

“Despite rising levels of awareness people should not become complacent.

“Although the dark winter months are coming to an end London’s teenagers still need to be wary as they travel around the city, especially in the mornings around clock change.

“I urge all teenagers to make sure that they are visible on the roads, particularly when they travel in the dark as that is when they are most vulnerable.”

The 'Don't Let Your Friendship Die on the Road' campaign, which has been running for 11 years, aims to remind youngsters to look out for their friends on London's roads.

The campaign features YouTube videos and a poster campaign across the city featuring Being Human stars Lenora Crichlow and Russell Tovey.

Mayor of London, Boris Johnson, said: “With darker mornings around the corner we want youngsters to remember to take care and keep an eye out for their friends as they travel around the city.

“Deaths of youngsters on London's roads are falling but we will continue to do everything in our power to help drive down needless accidents.”