Police have swarmed on a property in Melbourne's north-west after "several suspicious devices" were found there on Saturday.
Officers were called to the Belle Vista property in Keilor East about 11.30am after a number of items were located.
A crime scene was set up after police found several suspicious devices.
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The Bomb Response Unit is on scene detonating the devices, police said.
There is no perceived threat to the community, but police have advised people to avoid the area.