The bodies were discovered overnight in a unit of an older townhouse complex on the west side of Lethbridge.
"We know that it's a violent scene," deputy police chief Colin Catonio said Tuesday.
"We received a call around 2:30 this morning. It was a check on welfare of the occupants of the residence. Officers arrived and confirmed that there were three people inside who were deceased."
Catonio said investigators believe the three dead were targeted. Their names have not been released and there is no word on how they died.
No one is in custody.
A wide area around the scene was cordoned off while investigators in white jumpsuits checked for evidence.
(CJOC, The Canadian Press)
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