Reading Festival chiefs have warned campers about the dangerous side-effects of a 'Louis Vuitton' pill in circulation at the event. 

A message posted on the festival's app urged people to seek medical attention if they have taken the drug. 

It read: "WARNING. Rectangular Louis Vuitton pills being sold as MDMA are giving adverse effects.

"Seek help immediately. Go to welfare or medical."

Reading Chronicle:

Reading Festival officially started today (Friday, August 27) with Stormzy headlining this evening. 

The festival's organisers 'do not condone the use of drugs', according to their website's drugs policy. 

The policy reads: "Festival Republic does not condone the use of drugs. Drug enforcement laws are as applicable onsite as anywhere else in the UK and it is, therefore, illegal to buy, sell or possess drugs.

!All drugs are potentially dangerous, there are no harmless drugs. The only way to avoid risks is to not take drugs at all. This goes for new psychoactive substances (formerly known as “legal highs”) as well.

"We still want our festival-goers to know that you can come to us for help if you or your friends need it, without fear of getting in trouble at any time.

"Always be honest with medics and welfare teams about what you have consumed so that they know how best to help you."