Two persons are believed to have overdosed and died over the weekend at a music festival in Sydney.
After watching Knockout in Sydney Olympic Park, the two males, 21 and 26, passed away.
It is unknown what caused their demise.
After attending the festival, nine more persons were sent to hospitals.
Police reported that four persons, including two men and two women, were charged with drug supping at Knockout in addition to the 27 people who had been charged with drug possession.
One of them was a 21-year-old male who was allegedly detained after attempting to elude police.
Police allegedly found 491 MDMA tablets on him, which they seized.
At the Listen Out festival in Centennial Park on Saturday, police charged 85 additional people with drug possession and eight additional persons with drug supply.
Two people were accused of assaulting police, one for violating their bail, and the other for exposing themselves to obscenity.
