Police are seeking information after a homemade explosive device was located near the intersection of Cardigan Road and Belfast Road Montrose at 3.30pm on Saturday 22 June.
Police believe the device may have been there for several hours before being located by a nearby resident. No property was damaged, and no one was injured.
Please contact Yarra Ranges CIU on 9739 2401 or Crime Stoppers on 1800 333 000 if you sighted any suspicious persons or vehicles in the area around that time or have any information which may assist.