Police have charged four people with aggravated assault after a 45-year-old Croydon South man was attacked on Sunday 27 June.
At around 12.15am police were called to reports a group of people were behaving erratically at premises on Maroondah Highway.
It is understood four male and two female offenders forced entry into a room at the motel and assaulted the man with metal poles and bats.
He was taken to hospital with non-life-threatening injuries.
Five offenders fled the scene in a grey Audi before police arrived.
An 18-year-old Ringwood woman was arrested at the scene and interviewed by detectives.
She has been charged and was released pending further enquiries.
On Monday, detectives from the Yarra Ranges Crime Investigation Unit arrested a 20-year-old male from Croydon, a 19-year-old male from Seville, a 19-year-old female from Mooroolbark and a 17-year-old Yarra Ranges male after a warrant was executed at an address in Mooroolbark.
All four have been charged with aggravated home invasion and remanded into custody.
A 17-year-old Yarra Ranges male was arrested at an address earlier today, 29 July, and is currently assisting police with their enquiries.
Police are not seeking any other offenders in relation to the incident, however the investigation remains ongoing.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or online at crimestoppersvic.com.au.
