More than 800 cannabis plants have been found in Bradford.
The drug farm was found in a basement on Mount Street in Bradford on Thursday, February 21.
Two men have been arrested.
In a statement on the West Yorkshire Police - Bradford East Facebook page, they said: "Yesterday, Officers from the Neighbourhood Team acted on some community intelligence locating a large scale Cannabis Farm in a basement on MOUNT STREET, Bradford with over 800 plants.
"This was clearly a sophisticated set up. Two males were arrested and remain under investigation.
"Here is just a sample of what the Officers located. If you look closely you can see the officers in the distance.
"You Say We Do - Community intelligence is vital to our operations to make communities safer."