A small town on Australia's NSW South Coast is in shock after a 66-year-old woman was arrested over the stabbing death of her son.
Emergency workers were called to a home in Sanctuary Point on Monday night and found the 27-year-old man with a single stab wound to his shoulder.
He died on the way to hospital, police said.
AAP understands investigators are looking at the possibility the victim's mother had armed herself following an argument.
She is being questioned by detectives at Nowra Police Station.
Inspector Deborah O'Reilly could not confirm if there was a history of violence between the mother and son, or if the woman was under duress, but noted the "likely" charge will be manslaughter.
"Any incident like this is very tragic," she told reporters in Nowra on Tuesday.
Sanctuary Point mortgage broker Ellen Thornthwaite, who spent Tuesday morning meeting with other local business owners, said the community was "shocked" and "saddened" by the news.
"A lot of people are very shocked - I am myself," she told AAP.
"I'm sure there are many people who will be impacted by this, and having no idea what the circumstances are behind it - it's a tragedy regardless."
She said there were known issues with drugs in the area but something like this was it was totally unexpected.