The Independent Investigations Office is looking into the death of a man who fell to the ground from a high-rise on Bidwell Street.
According to Vancouver police, prior to his death the man was distraught and was throwing items, including television sets and bicycles, from a ninth-storey window.
Police were called just after noon today and were in the building when the man died.
His name has not been released.
The IIO has issued a statement saying that the coroner is also conducting an investigation.
Anyone who witnessed the incident or has video footage is being asked to contact the IIO witness line at 1-855-446-8477.