canine attack
© Angela Antunes / CC by 2.0
Detectives believe a man found dead in a Nowra unit earlier this week was mauled by his own dog after he had a medical episode.

NSW Police initially treated the 51-year-old's death as suspicious when his body was discovered with "horrific" injuries in the unit on Monday, a spokesman told AAP on Thursday.

Multiple police crews had swarmed the quiet neighbourhood, some in forensic suits, as the unit block on Douglas Street was declared a crime scene.

However, a post-mortem examination of the man's body has since ruled out homicide, AAP understands.

The NSW coroner will be required to formally rule if the man's dog - reported to be a Staffordshire terrier - killed him in the home.

Investigators believe the man was incapacitated during the attack. The coroner will determine if reports he suffered an epileptic fit are correct.

The gruesome twist shocked members of the small community who'd suspected the man had met with foul play.

"What a dreadful thing to happen," one local wrote on Facebook on Thursday.

Another added: "Never trust a dog 100 per cent."

Source: Australian Associated Press