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A woman was watching TV Friday when her daughter stabbed her in the back, police said.

The 64-year-old woman was sitting down at her home in Sheepshead Bay when her 41-year-old daughter attacked with an unknown object. It is unclear what led the daughter to attack her mother. The daughter fled and was still on the loose Friday evening, authorities said.

The victim was taken to Maimonides Hospital to be treated for injuries.