Three men were arrested on Saturday during a police raid at a residence in Gżira.
The police said on Sunday the men, aged between 30 and 48, live in Gżira and Sliema.
The raid, by the Speical Intervention Unit and the Traffic Section, was carried out after the police received information that drug trafficking and abuse was taking place at the residence, in Triq tas-Sliema, at several hours of the day.
The arrested men were found in possession of sachets containing cocaine and heroin. Items related to the sale of drugs, such as electronic scales, were also found at the residence. These indicated that the drugs found were ready to be trafficked.
An inquiry is being held.