Israel Border Police said Friday that they stopped and apprehended a 15-year-old female suspect outside the Cave of the Patriarchs after finding a concealed knife.
Security Forces said their suspicions were aroused by the youth's behavior and began questioning her.
The teenager suspect was placed under arrest and detained for further questioning.
The event marks the second incident at the same location on the same day.
Earlier Friday, a female assailant was shot and killed after attempting to stab an Israel Border Police officer at the Hebron holy site.
Border police shot the female suspect after she pulled out a knife and attempted to stab an officer.