Waterloo Regional Police have arrested a youth as part of an investigation into a reported robbery in Victoria Park.
Investigators were told a victim was assaulted by a group of people around 9:30 p.m. on Canada Day.
The victim told police a firearm was brandished during the incident and the suspects took off on foot after robbing the victim.
Officers arrested a youth on Wednesday and charged them with robbery.
Police are still trying to identify another suspect they believe was involved.
Anyone with more information is urged to contact police.