Prof John Ashton, a public health expert based in Cumbria, has warned of the dangers of drinking super-chilled cocktails after a Lancashire teen had to have part of her stomach removed after drinking a cocktail made with liquid nitrogen.
Prof Ashton told ITV Granada: "It's extremely dangerous. You've got alcohol, which in itself is dangerous, we've got liquid nitrogen which is a dangerous chemical.
"People should not be fooling around with these sorts of things."
More top news
Alibaba - have you heard of it, know the name or what it is, or care what it does? Because you might want to.
The Tonight programme investigates the tough reality of life for people with learning disabilities in this country.
The al-Bakrs were devastated after Israeli airstrikes killed four boys in their family, they are now waiting for news from the boat tragedy.