UPDATE: ONE man has been charged while three others have been questioned over a fatal attack in Victoria's Mornington Peninsula.

David Cassai, 22, died during a fight where he and his friends were confronted by another group outside a pizza shop at Rye early on Monday morning.

Police say Mr Cassai was assaulted, causing him to fall and strike his head on a concrete footpath.

Detectives have arrested an 18-year-old man and a 24-year-old man in relation to the incident.

The 24-year-old was then charged with intentionally causing injury and affray and bailed to appear in court in February.

The other man has not yet been charged.