Police shut down a party at an Airbnb rental property in Point Cook, which was attended by around 100 people, last month.
Police attended the residence, in Shield Road, around 9.55pm on Sunday, June 30.
Police said they were called to the property due to loud music coming from the party, which was being held to celebrate the birthday of a Werribee teenager.
Police said they “moved on” all the party-goers.
In addition, one youth alleged that he was robbed at the party, which police are still investigating.
In a separate incident, which occurred two days earlier on Friday, June 28, a 17-year-old boy was robbed as he walked along Lennon Boulevard in Point Cook.
Two youths riding bikes confronted the teenager and demanded his mobile phone.
Police said the victim tried to run away, but the two offenders caught up to him. They stole his mobile and his wallet, before riding away on their bikes.
Anyone with information can contact Crime Stoppers on 1800 333 000.