Ontario’s police watchdog has invoked its mandate after an individual sustained serious injuries after falling from the balcony of an apartment building in Toronto’s east end.

Police say that they were initially called to the building on Dawes Road near Gower Street, which is in the vicinity of Victoria Park and St. Clair avenues, at around 1 a.m.

The initial call, police say, was for a person in crisis.

A spokesperson for the Special Investigations Unit told CP24 that "while officers were at the building, a man fell from a 3rd floor balcony and landed on the 2nd floor balcony below."

Paramedics say that the male was subsequently taken to hospital in serious but non-life threatening condition.

No further details have been released about the incident.

The SIU is now investigating.