Shepparton Crime Investigation Unit detectives have arrested eight people following an alleged assault outside a licensed premises in Shepparton last weekend.
It is alleged an orange motorbike was riding erratically up and down Maude Street mall about 12.30am on Sunday 25 October.
An off-duty police officer, a 19-year-old man, asked the rider to leave the area before he was surrounded by a group of unknown males.
The man and his friend, also aged 19, were allegedly punched to the face and kicked before they were able to flee.
They were both transported to hospital with non-life-threatening injuries and have since been released.
Detectives on Thursday executed eight search warrants in the Greater Shepparton area, arresting a 16-year-old boy, three 17-year-old boys and two 18-year-old men.
They were interviewed and are each expected to be charged on summons.
A 20-year-old Kialla man was also arrested and released pending further enquiries.
A 17-year-old boy presented himself to a police station on Friday where he was interviewed and released pending summons.
Mobile phones, an off-road motorcycle and an imitation firearm were seized as part of the investigation.
