Police from Melbourne’s Bomb Response Unit last night were set to detonate a quantity of explosives found in a backyard at Mooroopna.
What was believed to be homemade explosives were uncovered at a William St property during a drug raid yesterday.
Specialist police from Melbourne’s Bomb Response Unit travelled to the address after a warrant was executed in relation to a drug investigation.
The explosive substance was examined by police and was determined to be too unstable to move, and needed to be detonated at the property.
The street remained in lockdown during the process, with police cordoning off a section of the road at the intersection of William and Hall Sts.
Electricity to parts of the street was cut and up to 25 homes within the immediate vicinity of the area were evacuated.
Shepparton police Sergeant Paul Gordon said the unit was determining what the explosives consisted of.
They were located in a shed at the backyard of the property.
‘‘It’s not posing any risk to the public at the moment, but it does have the potential to,’’ Sgt Gordon said.
‘‘We just don’t know at this stage, and we are continuing to investigate.’’
Police arrested a Mooroopna man, 33, at the scene and he is currently in custody.
Sgt Gordon said police were still working to confirm how the man came to possess the materials and what he had planned to use them for.