Sarnia-Lambton Crime Stoppers is circulating a photo of three males accused of assaulting someone outside Bluewater Health.
The alleged incident is being featured as the crime of the week.
According to Crime Stoppers, police were called to the Norman Street site just before 8 p.m. on February 6.
"The initial complainant was from a security guard, reporting that a male party had been assaulted by three unknown males outside of the emergency room doors," the organization said in an online post.
"Officers reviewed surveillance video from the area. At approximately 7:52 p.m., a black Dodge Ram with an unknown license plate was observed traveling northbound on Norman Street toward London Road. The vehicle turned eastbound onto London Road and then entered the parking lot of 481 London Road. At approximately 7:54 pm, three males exited the vehicle and walked southbound on Norman Street toward the area where the male victim was standing."
The first male is described as wearing light-colored pants, a brown or maroon jacket, beige shoes, and a ski mask. He was carrying a metal water bottle, which Crime Stoppers alleges the male victim was struck in the head with.
The second male was wearing a white and blue jacket, dark pants, and a black ski mask.
The third male was wearing a grey jacket, beige pants, dark-colored shoes, and a ski mask.
Crime Stoppers said the men exited through the employee entrance on East Street at 7:57 p.m. Their direction of travel afterward is unknown.
The "crime of the week" is a featured, unsolved criminal case highlighted to solicit anonymous tips from the public.
Anyone with information on the identify of these individuals is asked to call Crime Stoppers at 1-800-222-TIPS (8477) or submit a tip online at www.P3tips.com.
You will remain completely anonymous and could receive a cash reward for your information.
The Sarnia Police Service has not shared details with the media on this case, including the victim's condition.