Nine men and a woman were arrested after being found in possession of drugs on Sunday-Monday night.
The police said the arrests were made at a party in Ta' Qali.
Their age ranges from 18 to 28 resident in Qormi, Rabat, Sta Lucija, Marsascala, Paola, Zurrieq, Zabbar and Zejtun.
They were found in possession of cocaine and ecstasy.
Arraignments are expected in the coming days.