RCMP say they were called to an apartment in the Hawthorne Manor following multiple reports of shots fired.
The building is in the 46,000 block of Gore Ave.
The case has now been handed over to the Integrated Homicide Investigation team.
Police say the shootings appear to have been targeted.
The names of the victims have not been released.
IHIT is asking anyone in the area between 3:30 a.m. PT and 4:30 a.m. PT who may have witnessed anything to give them a call on their tip line at 1-877-551-4448 or contact CrimeStoppers at 1-800-222-8477,
MAP: 46,000 block of Gore Avenue, Chilliwack, B.C.