A man has been charged with three counts of murder after the bodies of a woman and two children were found inside a Sydney home.

Officers attended the home in Campbelltown, in the city’s south-west, on Monday night “following a call from the home to triple zero” at about 7.50pm, New South Wales police said.

The bodies of the woman in her 40s and two boys under 13 were found inside.

A 47-year-old man was arrested at the house and taken to Campbelltown police station.

Early on Tuesday morning, he was charged with three counts of domestic violence murder.

Act Supt Michael Moroney told reporters on Monday night all four people were known to each other and it was a “particularly violent crime scene”. The victims were found in various areas of the home.

“Other than that, I can’t go into specifics at this time,” he said.

“Police have located a number of items inside the premises which would be of interest in regards to the injuries sustained to those people.”

Moroney said no firearms were found at the house, and the 47-year-old was not previously known to police.

He was refused bail to appear in Campbelltown local court later on Tuesday.