Major Collision Investigation Unit detectives are appealing for witnesses following a fatal collision between a 4WD and two motorcycles in Kevington on Friday afternoon, Victoria Police say.
The collision occurred on Mansfield-Woods Point Road about 4.45pm.
The two motorcyclists, a 32-year-old Western Australia man and a 40-year-old Seaford man, died at the scene.
A pillion passenger, 38-year-old Seaford woman, sustained serious injuries was airlifted to hospital.
The 46-year-old male driver of the 4WD, from Millgrove, was not injured and has been interviewed by police.
Investigators would like to speak to anyone who witnessed the collision or saw a black 2004 Toyota Hilux 4WD which was towing a trailer, a black and silver 1996 Harley Davidson or a black 1997 black Harley Davidson, travelling in the area prior to the collision to come forward.
Anyone with information is urged to contact Crime Stoppers.