Three children and a woman have been taken to hospital after a stabbing attack on Monday morning in a suburb in Sydney’s north-west.

According to a press release from New South Wales police, about 5.20am on Monday emergency services were called to a home in Baulkham Hills, following reports that multiple people had been stabbed.

Police found a 10-year-old boy, a 13-year-old girl, a 16-year-old girl and 46-year-old woman with stab wounds.

All are believed to be known to each other.

They were treated at the scene by paramedics and taken to Westmead hospital in a stable condition.

Police have begun an investigation.