It's reported Gardai have arrested a man on suspicion of selling illegal drugs in the Dublin nightclub outside which Ana Hick collapsed last weekend.
The Dalkey native died last Sunday after being rushed to the Mater hospital in the early hours of Saturday morning.
The Irish Independent reports that six other people who were in the Twisted Pepper nightclub on the same night as Ana Hick were taken to hospital after taking ecstasy.
Gardai carried out an undercover operation on Saturday night after they were contacted by the hospital and are understood to have arrested one man on suspicion of selling illegal drugs.