The Portland Police Bureau's Explosive Disposal Unit was called to a house in Southeast Portland where a military grade munition was found.
Officers responded and as a precautionary measure secured the area. It was determined there was no immediate risk to the public.
The Explosives Disposal Unit responded and determined the item, a three and a half inch anti-tank munition from the World War Two era, was inert.
Occasionally, old munitions will be discovered in the Portland area. Community members are asked not to touch or disturb these items as they can be very dangerous if moved.
Anyone coming across a suspected explosive device should immediately call 9-1-1.