Media playback is unsupported on your device

'Up to five deaths' caused by drinking game Neknominate

22 February 2014 Last updated at 13:40 GMT

Social networking sites Facebook and Twitter should introduce warnings over the drinking game Neknominate, councils in England and Wales have said.

The game, which involves people filming themselves downing alcohol and then nominating someone else to continue, has been linked to several deaths.

Professor Mark Bellis from the UK Faculty of Public Health spoke to BBC Breakfast's Naga Munchetty and Charlie Stayt about the dangers of the game.

Copyright © 2015 BBC. The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.