The search for the killers of two men in East Preston, N.S., last month has led police to Edmonton and Vancouver.

Members of the Halifax integrated major crime unit questioned seven people in the two western Canadian cities this week, RCMP said Friday.

The house where the shooting took place is known as an after-hours club.The house where the shooting took place is known as an after-hours club.
(CBC)

All seven were released and no charges have been laid.

Investigators have been pleading for tips about the shootings of Martaze Cortaze Provo, 25, from North Preston, and Brandon Courtney Beals, 21, from East Preston.

The two men were gunned down Dec. 10 outside a party house on Upper Partridge Road in East Preston. Two others were injured.

Police said there were witnesses, but they have not come forward, and the two victims who survived the shooting are still not co-operating.