An out-of-control party in Beechboro was advertised on Facebook before police were called to attend to more than 100 teenagers creating a disturbance.
About 10.15pm, police were called to an address in Altone Road, a police spokeswoman said.
"The youths were guests at a party which was advertised on social media (Facebook)," the spokeswoman said.
"Officers. including some from Mounted and the Regional Operations Group, dispersed the crowd
No arrests were made.