An 18-year-old boy has died at Cork University Hospital after falling ill at a house party in the city on Monday night.
He was hospitalised after taking a psychoactive substance at the party.
The boy had been in a critical condition but Gardai have confirmed that he passed away this afternoon.
A 29 year old man was arrested in connection with the supply of the drug - N-Bomb - and was later released without charge.
A file is being prepared for the DPP.