PHILADELPHIA CBS) — Authorities say a woman is dead after she was attacked by someone that she knew.

It happened around 3:30 pm Saturday in a rooming home at the 3700 block of North 18th Street in North Philadelphia..

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The victim was taken to Temple University Hospital and was pronounced at 3:58 pm.

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Police say that it was homicide by aggravated assault and that she was attacked by a 54 year-old man.

Authorities have the assailant in custody.

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