The attack was reported around 3:45 p.m. in the 2300 block of Hillhurst Avenue.
The Los Angeles Police Department says a woman was stabbed multiple times and was sent to a hospital.
Police said a suspect was in custody but the identification of the individual and possible motive for the attack remained unknown.
The location is along a main road that leads up to the Greek Theatre and Griffith Park.
DEVELOPING: This story will be updated as more information becomes available.
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