The Police arrested 36 individuals after a clash erupted at a party in Ratnapura organised using Facebook.
The Police said that among those arrested were 12 females. They were however released after a stern warning.
The clash erupted between those at the party and some area residents.
The Police also said that two suspects who were arrested had in their possession 530 grams of crystal methamphetamine, also known as ICE and 4 grams of Cannabis.