Police have made a number of arrests in connection the double murder which took place in Sliema last week.
One man, believed to be Albanian, was arrested in Triq San Frangisk.
A gun believed to have been used in the double murder was found in the building where the man was arrested. A Maltese man has also been detained.
A mobile video shows armed officers approaching the building and what sounds like gunshots can be heard.
No injuries were reported.
Image: Suspect arrested over Sliema double murder