FOUR men have been arrested after police discovered a "substantial" cannabis grow in Denbighshire.

North Wales Police's Denbighshire and Conwy Rural team said its officers recently executed a warrant at a property in the Ruthin area.

Source - North Wales Police.

Source - North Wales Police.

There they discovered a "professional and substantial grow" within a building split over two floors.

The grow consisted of approximately 500 plants and is believed to be cannabis, police said.

Source - North Wales Police.

Source - North Wales Police.

Four men subsequently arrested in connection with the finding have been released pending further investigation.

Source - North Wales Police.

Source - North Wales Police.