Three were arrested on Saturday night following drug finds in Zejtun and Paceville.
The police said that in the first find at Zejtun, a 23-year-old man from Marsaxlokk was arrested for possession of 27 packets of heroin prepared for trafficking.
The second find was in Paceville where two, aged 31 and 32, residents in Fgura and St Paul’s Bay, were found in possession of cocaine at places of entertainment.
They are expected to be arraigned on Sunday afternoon.