The Alberta Serious Incident Response Team has been called in to investigate after police shot and killed a man near Medicine Hat on Saturday.

In a news release issued Sunday, Medicine Hat police said they received a report of a missing person on Friday. The next day, the investigation into that missing person brought investigators to a property just outside city limits where a member of the Medicine Hat police force had located a vehicle.

Upon arrival, police said, they were confronted by an armed man and immediately called in RCMP to help secure the area. When the suspect tried to leave the area, police shot and killed him.

Medicine Hat police said it's not clear what connection the vehicle on the property may have had to the missing person report being investigated by their investigators at the time of the incident.

Police  say they believe criminal activity occurred on the property before they arrived but the nature of that alleged activity has not been clarified.

The Calgary RCMP Major Crimes Division will take over the investigation of the scene because it is outside Medicine Hat city limits.

ASIRT is called in to investigate incidents or complaints involving serious injury or death of any person, and matters of a serious or sensitive nature, that may have resulted from the actions of a police officer.