07/05/2015 10:12 EDT | Updated 07/05/2016 05:59 EDT

SIU investigates shooting death of man on Gilbert Avenue

Ontario's Special Investigations Unit is looking into the shooting death of a man early Sunday at an apartment building on Gilbert Avenue. 

Toronto police say they were called to the scene shortly after midnight after a report of a man armed with a hammer at the building.

The man was pronounced dead at the scene at 12:26 a.m., police said.

There was an interaction between Toronto police officers and the man, and one officer discharged his firearm, according to a press release from the SIU.

One subject officer and five witness officers will be part of the SIU investigation into the incident.

The SIU investigates reports involving police where there has been death, serious injury or allegations of sexual assault.