A number of people have been hospitalised after taking ecstasy at Indie Festival on Friday night, Cork Beo reports.
Organisers warned of a "bad batch" of a substance going around the Mitchelstown Festival and for people to look after themselves.
Cork University Hospital has confirmed that a number of people have been admitted with "severe illness" after taking tablets.
They said in a statement: "CUH has received patients with very severe illness from taking Ecstasy at the Indie19 Festival in Mitchelstown.
"We are aware that a text message was issued to attendees concerning 'reports of a bad batch of something on the campsite'. Please circulate & to all attending stay safe."
Organisers did send out a warning on the issue last night warning people not to take illegal substances.
A spokesperson said: "Welfare Message - We have reports of a bad batch of something in the campsite, do not consume any substances that you are unsure about, it has the potential to make you very sick. Please be careful and look after each other."
