BREAKING NEWS Young boy, 10, is stabbed along with two teenagers and an adult at Baulkham Hills

Four people have been stabbed in northwest Sydney in the early hours of Monday morning.

NSW Police arrived at a home on Jamieson Avenue at Baulkham Hills at 5.20am following reports that multiple people were stabbed.

A 10-year-old boy, 13-year-old girl, a 16-year-old girl and 46-year-old woman were taken to Westmead Hospital in a stable condition.

The three children and adult are known to each other.

A crime scene has been established and an investigation launched into the matter. 

More to come