A 21-year-old Kialla man was airlifted to hospital with serious injuries after a motorcycle crash at Tallarook on Boxing Day.
It is believed a dark grey Honda CBR 500 motorcycle was travelling north on the Hume Fwy when it crashed about 9.09am.
The exact circumstances surrounding the crash are yet to be determined and investigations are ongoing.
Seymour police are appealing for witnesses to the crash.
Anyone with information or with dash cam footage is urged to contact Crime Stoppers on 1800 333 000 or make a report online at www.crimestoppersvic.com.au.