Sarnia police have issued an arrest warrant for a fourth suspect accused of breaking into a residence and assaulting some of the occupants.
They said one of the occupants suffered head and facial injuries as a result of the attack and was transported to Bluewater Health by Lambton EMS.
The victim was treated for non-life threatening injuries, and later released.
At the time, police said the suspects stole a television and a bicycle before leaving the property.
Three people, Ronald Johnson, 34, Kyle Johnson, 34, and Tyson Borden, 33, were arrested on June 20.
Each of them has been released on bail and their matters remain before the courts.
Police are searching for 22-year-old Devin Porter.
He's wanted on charges of break and enter to commit an indictable offence, robbery, assault causing bodily harm, and possession of a weapon for a dangerous purpose.
A photo of Porter was not provided by police.
Anyone with information on his whereabouts is asked to contact the Sarnia Police Service at 519-344-8861 extension 0, or Crime Stoppers at 1-800-222-TIPS (8477).
Crime Stoppers can also be accessed online at www.p3tips.com.