Dr Amir Khan has warned festival-goers about a "worrying" new trend of vape spiking following an incident of it at the Isle of Wight Festival earlier this month.

Chloe Hammerton collapsed and started fitting after being 'duped' into using a vape at the festival on June 17, and a police investigation is underway.

She appeared on ITV's Good Morning Britain today (June 23) to discuss her experience, and Dr Khan was asked his thoughts on the situation also.

He described it as a "worrying new trend" and recognised that it does seem to be on the rise.

Important to 'raise the profile' of vape spiking

Dr Khan stated that spiking involved putting any alcohol or drugs into someone's body without their consent, which often has no taste or smell to it.

He added: "It's important that people are aware and we raise the profile of vape spiking."

Afterwards, he was asked if he was aware of what drug might have been used in the vape that Chloe had used considering her near-immediate reaction to the substance.

He responded: "A lot of those drugs can work within minutes, anything within a couple of minutes to 30 minutes.

"Ketamine in particular works particularly quickly and the symptoms can vary between feeling sickness and nausea, loss of consciousness, confusion, sleepiness, but Chloe had a very severe reaction.

"That's the problem really, when you're putting these illicit drugs into things there's no dosage, we don't know how much has gone into it, how much Chloe inhaled there, and that is the danger.

"People are just putting these drugs into drinks, into vapes, injections without thinking how much they're putting in and what effect that's going to have."

Good Morning Britain is available to watch on ITV1 and ITVX weekdays mornings from 6am.