Chatham-Kent police responded to the call around 11 pm and found the victim with non-life-threatening injuries.
Police evacuated the area immediately.
The victim was initially rushed to the Chatham Kent Health Alliance, but later transferred to London Health Science Center.
No name has been released but police would like anyone with information to contact Detective Constable Shawn Tremblay at shawnt@chatham-kent.ca or call Crime Stoppers at 1-800-222-TIPS.