Toronto police say a 30-year-old man has turned himself in after a woman was killed in a hammer attack Friday evening.

Police were called to the area of Sheppard Avenue East near Markham Road for a possible medical complaint. They say the victim, identified as 64-year-old Hang-Kam Annie Chiu of Scarborough, was walking east on Sheppard when she was hit by a man.

She was pronounced dead at the scene.

Police initially said that the incident was a shooting, but say that is no longer the case.

Saad Akhtar, 30, of Scarborough, turned himself in at 42 Division and has been charged with first-degree murder. He appeared in court at Old City Hall Saturday morning, police say.

The investigation is ongoing.