Three men and a woman have been charged with drug supply at a Sydney music festival.
Police say another 32 people were charged with drug possession and eight were issued drug criminal infringement notices at the Midnight Mafia Music Festival at Olympic Park on Friday.
A 30-year-old man and 26-year-old woman were arrested at the festival after allegedly being found in possession of 26 MDMA capsules and cash.
Police allege a subsequent search of a vehicle parked outside the event revealed another 50 capsules.
The Blacktown man was charged with three counts of supplying a prohibited drug and knowingly dealing with proceeds of crime, while the West Wollongong woman was charged with two counts of supplying a prohibited drug and knowingly dealing with proceeds of crime.
A 24-year-old man and a 22-year-old man were also charged with drug supply after they were each allegedly found in possession of MDMA capsules. The older man was also charged with knowingly dealing with proceeds of crime.
Another man, 38, was charged with knowingly dealing with proceeds of crime after he was allegedly found with $41,000 cash.
Police say 165 festival-goers sought medical treatment at the event with paramedics taking nine people to hospital, six of those for drug-related issues.
© AAP 2019