LONDON, ONT. -- The province's police watchdog continues to look into the death of a London man after he died as a result of falling from a high-rise apartment balcony, but a subject officer has refused to be interviewed for the investigation.

London police were called to 85 Walnut St. on May 5 at 11:15 p.m. for a person in distress.

Police found a man barricaded inside one of the units on the 15th floor. 

Shortly after police arrived, the man fell from the balcony and was rushed to hospital. Officers were outside the front door of the apartment at the time of the incident.

He succumbed to his injuries on May 8. A post-mortem was conducted on May 10.

The victim has since been identified as Caleb Tubila Njoko, 26.

Less than a week before the fall, Njoko had been arrested after allegedly attempting to steal a pizza delivery vehicle.

As of Tuesday, the Special Investigations Unit (SIU) has reportedly interviewed two civilian witnesses along with three witness officers.

The subject officer provided a copy of her notes of the incident but declined to be interviewed by SIU investigators.

According to the Police Services Act, officers aren't legally compelled to be interviewed by SIU officials and do not have to provide their notes.

Three investigators and one forensic investigator have been assigned to the case.

Anyone who may have information is urged to contact the SIU at 1-800-787-8529.