A man is fighting for his life following a double stabbing in Sydney's north, which is understood to have been a targeted attack.
Police received reports of an argument at a unit on Peats Ferry Road in Asquith about 10.35pm on Monday and arrived to find a 28-year-old woman with a stab wound on the floor inside.
A man and a woman have been arrested after a double stabbing.Photo: Supplied
A woman, 32, and a man, 33, were also present at the unit, and were not injured.
Police said they were then made aware of a 28-year-old man who had turned up at Hornsby Hospital emergency department with critical stab wounds. He was admitted to the hospital's intensive care unit, where where he remains.
Police allege the man was present at the Asquith unit, and all four people who were at the unit are known to each other.
The uninjured pair were arrested at the scene and are being held at Hornsby Police Station. Investigations into the stabbings are ongoing.
A nearby resident told Nine News he saw blood on the pavement after being woken up by police outside.