Sarnia police have made an arrest in a robbery last Friday at a Mac's Milk convenience store.
Police released surveillance video of a suspect after the incident at 299 Confederation St.
They say tips helped them locate the suspect.
Police executed a warrant at a Finch Avenue home Sunday evening and arrested a 37 year old male for robbery and robbery with a disguise offences.
They also arrested a 34-year-old male for breach of recognizance and a 23-year-old female for breach of probation.
All three, including a second 23-year-old female, are also facing a drug possession charge.
All four were held for a bail hearing.
"Again the Sarnia Police Service would like to thank the citizens of Sarnia for their assistance in this matter and hope that the people realize how important they are in helping the police keep our city safe," police said in a news release.
