Three Port Augusta men have been arrested on a number of firearm and drug related offences.
Just after 10pm last night, Port Augusta police received calls regarding the disposal of a sheep carcass in scrubland at Stirling North.
Close inspection of the sheep revealed that it appeared to have been shot.
Further investigation lead police to search a nearby address where they allegedly located a sawn-off rifle and ammunition.
A quantity of methamphetamine and a pair of knuckle dusters were also found in the search.
Three men aged 29, 24 and 20-years-old were arrested and charged with possessing a firearm and ammunition without a licence, trafficking a controlled drug, unlawful possession and possessing a prohibited weapon.
The oldest man was refused police bail and will appear in the Port Augusta Magistrates Court today.
The remaining two were both bailed to appear in the same court on April 15.