Detectives from Mornington Crime Investigation Unit have arrested two people following an assault that occurred in Mornington earlier this month.

A 20-year-old Mount Martha man was interviewed and released.

He is expected to be charged on summons with a weapons offence.

A 17-year-old teenage boy from Mornington was also interviewed and released.

He is expected to be charged on summons with criminal damage, assault and using a false document.

The men were walking through the car park on Railway Grove after leaving a nearby hotel. They became involved in an altercation with a group of men about 3am. Both were allegedly punched and knocked to the ground before bystanders intervened. The group then drove off.

The 20-year-old Mount Martha man and a 17-year-old man from Mornington were both taken to hospital with non-life threatening head injuries.

A Lyndhurst man, 28, allegedly involved in the incident in the Centro car park handed himself in to police next day and was interviewed and released.

The investigation remains ongoing and anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report at 1800 333 000.