Police have discovered what is believed to be human remains in Port Phillip Bay as they continue to investigate a plane crash in Mount Martha on Sunday.
They are believed to be the missing occupants of the plane, a 56-year-old Brunswick man and a 30-year-old Surrey Hills man.
It comes after police located wreckage from the plane off the shore of Mornington on Monday evening.
Water Police, Air Wing and Uniform officers have carried out extensive searches across Port Phillip Bay as part of a complex operation since the crash on Sunday afternoon.
Emergency services were called to reports two small planes collided over the bay about 1.45pm.
One plane crashed into the water, the other safely landed at Essendon airport.
Investigators are working to establish the exact circumstances of the incident and investigations remain ongoing.
They believe the aircrafts would have been visible from Mount Martha between 1pm and 2pm on Sunday.
Police are keen to speak to anyone who witnessed the incident, or anyone with vision of the planes.
Anyone who witnessed the incident, with footage, or information is urged to contact Crime Stoppers on 1800 333 000 or log onto www.crimestoppers.com.au.
