The decomposing carcasses of up to 20 illegally butchered sheep have been found dumped at a beauty spot in Wales.Police say illegal butchering and theft were likely to blame for the dumping of sheep body parts at the Dwyryd estuary, near Maentwrog, Gwynedd.The shocking image shows some of the remains in black bin bags and others left in the open air. The North Wales rural police team appealed for help to find the offenders after the incident came to light on Thursday (29 December).Police say the animals ears tags were also removed, making it difficult to trace the owner.They tweeted: “Up to 20 sheep fleeces and body parts dumped at the Dwyryd Estuary, near Maentwrog. Illegal butchering and likely theft.“We need to know whose responsible. Ear tags removed to avoid detection. Lets catch the offender together #someonemustknow.”The slaughter of animals - whether or not for human consumption - is governed by strict rules.Anyone with information about the incident is asked to call police on 101.