A man has been arrested in Sydney's west after the stabbing death of a 21-year-old woman in a suspected domestic-related homicide.
The woman was found with two stab wounds to her chest at a unit in Kingswood about 1.40pm on Monday. She died at the scene.
A man was seen running from the unit complex, sparking a police search.
A 22-year-old was arrested about 7.10pm in Penrith without incident following extensive inquiries, police said.
He has been taken to Penrith Police Station.
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