A Palestinian woman was arrested at a checkpoint near the Tomb of the Patriarchs in Hebron Saturday after she was found to be carrying a knife.
Officials suspect the young woman, in her twenties, intended to carry out a stabbing attack against Israeli security forces.
She was taken for further questioning.
Earlier Saturday a Jordanian citizen stabbed an Israeli police officer in the neck and head near Jerusalem's Old City before being shot dead by the policeman.
The assailant was identified by Hebrew media as Muhammad Abdullah Salim al-Kassji, a 57-year-old Jordanian citizen who entered Israel several days ago.
The 37-year-old police officer was taken to Jerusalem's Shaare Tzedek Medical Center in moderate condition after the incident near the Lions' Gate. He had wounds in the neck and head, and was conscious and in stable condition when evacuated to the hospital. A second man was lightly wounded, with cuts to the hand.