Two males face numerous charges including robbery and weapons offences after an incident at a James Street East address in Orillia.
Police were called to the area near Atherley Road around 11:30 last night about a report of a robbery with weapons involved.
OPP emergency response and tactical teams, as well as the canine unit were brought in to assist.
Two additional male suspects are being sought.
Police believe this is a targeted occurrence and there is no threat to public safety.