Update, 2.15pm: Police are questioning a 32-year-old NSW man who allegedly repeatedly stabbed his former partner in Maida Vale overnight after he followed her to WA.
Det Sen Sgt Gary Butler said the woman, 26, had been stabbed six times in the face and body in the attack near a BP petrol station on Kalamunda Road about 3am.
The alleged attack by Shane Dowden only stopped when a man who had been filling his car with petrol heard the victim's screams and intervened.
The alleged attack prompted a police search for the man, who they warned could have been armed. He was located by police in Cannington this afternoon.The victim is being treated in hospital for serious injuries.
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