Man found dead after hours-long police standoff in Kingston, SIU investigating

Ontario's police watchdog is looking into the death of a man inside a home in Kingston, Ont., on Monday.

Kingston police were made aware of an assault after 3 p.m. Monday, the Special Investigations Unit said in a media release issued Tuesday.

Several Kingston police officers, including members of the emergency response unit, were deployed to a rowhouse unit at 100 Compton St.

On social media, Kingston police described it as an "active incident" and asked residents in the area of Compton Street and Weller Avenue to stay inside their homes until further notice.

A loud "distraction device" was used by police at one point Monday night.

More than seven hours after the initial call, at about 10:30 p.m., police entered the home. A 52-year-old man was pronounced dead at the scene, the SIU said.

"The SIU is urging anyone who may have information about this investigation to contact the lead investigator at 1-800-787-8529, ext. 2314. The unit is also urging anyone who may have any video evidence related to this incident to upload that video through the SIU website," the media release reads.

Five SIU investigators have been assigned to the case, along with one forensic investigator.

The SIU investigates incidents of death, serious injury or sexual assault involving police in Ontario.